Police have closed off Barns Road in Cowley - but are yet to say why.
Residents in neighbouring Liddell Road described seeing a man being placed into an ambulance at around 1.30am this morning.
A blue forensics tent has been put up on the pavement in Liddell Road.
Cordons are in place on Barns Road, The Grates, Hockmore Street and Liddell Road.
It is not known how long the road closures will remain in place, but it is anticipated that Barns Road will be shut for much of the rest of the day.
You can read live updates as we receive more information on our blog.
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