Harmondsworth detention centre, where Ifa Muaza was on hunger strike until his deportation this morning. Photograph: Adrian Dennis/AFP/Getty Images
"We do not know how Mr Muaza is, as we lost contact with him late last night. We fear for his safety now on return but we will be looking at pursuing further appeals if we do make contact with him in Nigeria. He should not have been removed from the UK."
Home Office lawyers said at his latest detention review that Muaza had been declared fit to travel and plans were under way for his return.
Lord Roberts, who intends to raise the case in parliament next week, said Muaza's potential death on a flight or upon arrival in Nigeria was a tragedy and accused May of "allowing people to die to score a political point".
