Police are guarding a room in the Blackbird Leys Health Centre following the stabbing of two people.
Police said two men suffered stab wounds after being attacked in Celadine Place, Greater Leys, Oxford, at 12.20pm today.
Oxfordshire and Buckinghamshire Mental Health Partnership confirmed two of its staff were involved.
Witnesses said they saw two people running from Celadine Place to the nearby health centre in Dunnock Way.
They were treated by staff before being taken to the John Radcliffe Hospital.
Police are guarding a flat in Celadine Place and the room at the health centre where the two people were treated.
Initially police said a man and a woman were injured but they have since changed that to two men.
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