A man is critically ill in hospital after being stabbed in the neck in Oldham.
Police were called to Yorkshire Street in the town centre just after 2:30 this morning.
Another man with injuries to his hand has been arrested.
More top news
A police officer, whose search work exposed the horrors of the Moors Murders, has spoken out - 50 years after the killers were jailed.
The Independent Police Complaints Commission is considering publishing an unredacted report of what happened at the Battle of Orgreave.
Critics of police action at Orgreave have called on the interim chief constable of South Yorkshire Police to open up the force's archives.