These are the four men who are on the run from Campsfield House immigration centre.
Police have just released the pictures of the group who they are currently hunting for around Kidlington and further afield.
Police say they are low-risk but have still told people not to approach them. One is believed to have a conviction for what has been described as a minor crime.
However, officials have decided not to release their names.
They are four of the seven men who broke out of Campsfield in Kidlington just before 3.45am today. The other three were re-captured by police.
Insp Graham Sutherland said: "I would like to reassure people that we are doing all that we can to find these men.
"We currently have 22 officers searching the area and their details have been circulated to officers across the Force. We are also liaising with neighbouring forces.
"None of these men are considered to be a risk to the public.
"I would ask that if anyone does see any of these men that they should not approach them but instead call the police."
Anyone who sees them can call the emergency number 999.
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