The United States is investigating reports that Islamic State fighters have used chemical weapons against Iraqi security forces.
US Secretary of State John Kerry said the allegations, reported by the Washington Post, are "extremely serious" and confirmed his department was "seeking additional information" to determine their accuracy.
The Post said poisonous chlorine gas was the diagnosis for 11 Iraqi police officers who were rushed to a government hospital with severe breathing problems after an attack, purportedly by Islamic State extremists, last month.
The newspaper said an official at Iraq's ministry of defence supported the claims of the Iraqi forces, though the report added that details of two other apparent chlorine attacks were "sketchy".
Two bundles of military supplies for Kurdish fighters in Kobani went astray, the Pentagon has confirmed.
One was destroyed in a subsequent air strike and the other was taken by Islamic State (IS) militants.
Yesterday we announced that one resupply bundle went astray and was destroyed.
We have since relooked at that and we have determined that a second bundle also went astray and probably fell into enemy hands
Twenty-six other bundles of supplies were dropped to Kurds in the besieged city and reached their targets, Col. Warren said.
Former British National Party leader Nick Griffin told an inquest that it was possible the death of Dr Abbas Khan in a Syrian prison, had been made to look like suicide or that he was pressured into killing himself.
Dr Khan, a 32-year-old father-of-two from London, died on 16th December 2013 while in custody in Damascus.
Mr Griffin paid two visits to Syria in June 2013 and August 2013 and said during the first, he spoke about Dr Khan to the minister for information, the prime minister and a high-placed businessman who had President Assad's ear.
In further contact Mr Griffin was told that Dr Khan would be released, however he subsequently heard from Dr Khan's mother who told him: "they have killed him."
Dr Khan's family claim he was murdered, but the Syrian government always maintained that the surgeon killed himself and was found hanging in a jail cell.
Mr Griffin said he believed Dr Khan's death was brought about to prevent his release.
I concluded, purely as speculation, is that the way a group would try to stop that [Dr Khan's release] would be to so frighten him, in the light of the horrible experiences in the early days of his detention, that he would kill himself.
A new Islamic State video reportedly shows a father helping IS members stone his daughter to death for adultery.Read the full story ›
There are at least five Britons travelling to Iraq and Syria to join Islamic State (IS) every week, the UK's most senior police officer has said, adding that this is the minimum and there could be many more.
Metropolitan Police Commissioner Sir Bernard Hogan-Howe said the militants' activities in those countries were "not just the horrors of distant lands" and warned of the terrorist threat posed at home by returning fighters.
We know that over 500 British nationals travelled to join the conflict. Many have returned and many will wish to do so in the coming months and perhaps in future years.
We still have an average of five people joining them a week. Five a week doesn't sound much but when you realise there are 50 weeks in a year, 250 more would be 50% more than we think have gone already.
Those numbers are a minimum. Those are the ones that we believe have gone. There may be many more.
Islamic State (IS) fighters have claimed that munitions dropped by American planes have landed in the areas they control, rather then getting to the Kurdish fighters the US is trying to arm.
ITV News Washington Correspondent Robert Moore reports:
In a video posted online a masked man with a machine gun opens several boxes which hold a variety of shells and explosives. He says: "These are the bombs dropped by American forces to the Kurdish forces. Praise to God, now they are spoils for the Mujahideen."
The United States airdropped arms for the first time to help the defenders resist an assault by IS.
The US military said it conducted six air strikes on Islamic State militants near Kobani on Sunday and Monday, one of which destroyed a stray bundle of supplies from an air drop in order to prevent them from falling into enemy hands.
The Ministry of Defence has confirmed that the RAF will fly surveillance drones over Syria as part of their efforts to defeat Islamic State fighters in the area.
The MoD said the missions will be for intelligence gathering.
UK Reaper remotely piloted aircraft systems and Rivet Joint aircraft will be authorised to fly surveillance missions over Syria.
The deployment will see the Royal Air Force aircraft gathering intelligence as the UK ramps up efforts to protect our national interests from the terrorist threat emanating the country.
Reapers are not authorised to use weapons in Syria and, alongside Rivet Joint, will provide vital situational awareness making it an invaluable asset to the coalition allies who are combating ISIL.
Satellite images have revealed the destruction in and around the town of Kobani, on the Syrian border.Read the full story ›
The Foreign Secretary has welcomed fresh EU sanctions against the Syrian regime, describing President Assad as the "cause of instability and conflict" in the country.
Philip Hammond and European counterparts agreed the measures at a meeting in Brussels today.
Another 18 individuals and entities, including some suspected of supplying the administration with oil, will be subjected to restrictions.
Among those targeted by the sanctions is a "notorious" military commander who ordered nerve gas attacks that killed hundreds of civilians.
"Sanctions are a key part of our strategy for weakening the regime and limiting its ability to perpetrate more barbaric acts against the Syrian people," Mr Hammond said.
Huge explosions were seen over the Syrian town of Kobani today as air strikes against Islamic State targets continued.