Police are investigating after a noxious substance, thought to be similar to CS Gas, was released at the A&E department of a hospital in Greater Manchester.
Police say a "small number" of people were treated for the minor effects of the substance and Tameside Hospital's A&E was closed to the public for around one hour.
The man, who had been arrested earlier in Manchester, was take by police to the hospital after he suffered an injury to his head while in a police van.
At the hospital police say he discharged a noxious substance from an item similar in appearance to a cigarette lighter.
The man was further arrested for possession of a noxious substance and other offensive weapons.
The incident has been referred to Greater Manchester Police's internal investigations unit.
A man has been arrested on suspicion of murder in Tameside. Police were called to a house on Rowcon Close in Auden Shaw this lunchtime and found the body of a 39 year old woman. A 53-year-old man has been arrested on suspicion of murder and remains in police custody for questioning.
The mother of a man shot dead Tameside have paid tribute to an 'amazing son.'
Kieran McGrath was found collapsed outside Ashton police station on Manchester Road on Saturday. He'd been shot in the chest leaving the Sheldon Arms pub, the 26 year old managed to drive a mile down the road to the police station but died shortly after.
Police have arrested a 23-year-old man on suspicion of murder and has been released on police bail until a date in November.
Police are hunting a man responsible for a campaign of criminal damage plaguing a community in Tameside.
People living on Gibraltar Lane, Haughton Green and the surrounding streets have been repeatedly targeted by a man who has caused thousands of pounds worth of damage to cars in 26 separate attacks since the beginning of August.
In the first attack on 1st August 2014, an unknown man damaged a car on Gibraltar Lane with a screwdriver or similar tool in the early hours of the morning. Since then the residents of this street and nearby Freshwater Drive and Newport Road have been waking to find their cars repeatedly damaged.
Some have even repaired their cars and then been targeted again in the space of just a few weeks.
The mother of police killer Dale Cregan was due to appear in court today charged with fraud.
It follows a police investigation into an alleged multi-million pound money laundering racket.
Anita Cregan, 56, her daughter Stacey and 11 others – including acquaintances of her son – are due before Manchester magistrates court.
It follows a police operation designed to tackle organised crime in and around Tameside, Greater Manchester.
It is understood investigators have frozen assets worth millions of pounds as part of the probe, including more than 150 properties.
Mrs Cregan, of Sutton Drive, Droylsden, has been charged with two counts of fraud, one of obtaining a money transfer by deception and one of money laundering.
Cocaine dealer Dale Cregan, who had already slaughtered gangland rivals Mark and David Short, went on to murder PCs Fiona Bone, 32, from Sale, and Nicola Hughes, 23, from Diggle, before finally handing himself in to police.
He lured the officers to their deaths with a bogus report of a burglary, shooting them and throwing a grenade onto their dying bodies.
Mrs Cregan’s son is currently serving life at Strangeways prison and has been told he will never be released.
Her daughter Stacey has also been charged with one count of money laundering, namely that she and others conspired to steal, disguise, convert or transfer criminal property.
Other current, or former acquaintances, of Dale Cregan have also been charged with money laundering. They include Leon Atkinson, 36, of Ashton under Lyne, Matty James, 34, from Clayton, and Sean Booth, 32, of Sutton Drive, Droylsden.
More must be done to improve the "safety and responsiveness" of hospitals put into failure regimes, England's chief inspector of hospitals has said.
While hospitals put into special measures have shown "significant improvements" more must be done to address these issues, Professor Sir Mike Richards added.
Putting hospital trusts in special measures was a move introduced as part of the Government's response to the Stafford Hospital scandal.
A year ago, following a review into 14 hospital trusts with higher than expected death rates, 11 trusts were put into special measures for a catalogue of failings and fundamental breaches of care.
Tameside Hospital was one of those Trusts put into special measures, and required to stay in special measures, despite showing improvements.
Professor Sir Mike Richards said: "Although there have been improvements, it is important to emphasise that further improvements need to be made, especially in relation to safety and responsiveness.
"Our new inspection model has helped us get under the skin of hospitals. The special measures process is doing what it set out to do, and I am confident that it will lead to further improvements."
Specially adapted bikes used by disabled children have been destroyed in an arson attack in Tameside. Police say a trailer storage unit at the community centre on Lower Bennett Street was deliberately set alight.
The trailer contained 29 specially adapted bikes. The total cost of the damage is estimated at between £35,000 and £40,000. Two boys, aged 12 and 13 have been arrested on suspicion of arson and bailed pending further enquiries.
Police are growing concerned for a 16-year-old girl missing from home. Demi Dewsbury, from Ashton-under-Lyne, was last seen by friends at Ashton bus station, in the town centre, while on her way to Tameside College at around 9.30am on 25 February 2014.
She was last seen wearing a red crop top, green waistcoat, red beanie hat, black and nude striped leggings, red Puma trainers and carrying a black bag.
PC Stewart Chitty, based at Tameside, said: "Demi's disappearance has naturally left a lot of people very worried about her as she it is not like her to remain out of contact like this. "They want Demi to know she is not in trouble at all and they simply want to know she is okay.
Demi has links to Tameside and Merseyside. Anyone with information is asked to call police on 0161 856 9311 or 101.
Part of a Victorian Mill in Greater Manchester damaged by recent storms is set for demolition.
New Mill on Park road in Dukinfield was evacuated following an inspection from Tameside Council building control officers.
Some residents living nearby have had to leave their homes.
It is not yet known when they will be able to return.
In a statement Tameside Council said:
"Structural investigations have been completed to ascertain the full extent of the damage. The mill owner's contractors are now onsite and will begin demolition of the affected parts of the building."
Police are investigating after a man indecently exposed himself outside a woman's house in Tameside.
It happened on November 26th at around 9:10pm when the woman noticed that a man was standing outside her home on Stockport Road, staring at her. He then pulled his trousers down.
The offender is described as being a white man in his late 20s to early 30s, about 5ft 8in tall, of medium build and with fair hair. He was wearing a snood and waterproof khaki coloured coat.
Anyone with any information is asked to call police on 0161 856 9494 or call the independent charity Crimestoppers anonymously on 0800 555 111.