The MPS counter terrorism detectives are appealing to the public to help in tracing a 28-year-old man believed to have absconded from a Terrorism Prevention and Investigation Measures notice (TPIM).
Ibrahim Magag is not considered at this time to represent a direct threat to the British public.
Police were alerted on the evening of Wednesday 26th December when Magag failed to meet his overnight residence condition.
The Counter Terrorism Command immediately launched inquiries to trace the man and these continue. MPS said public safety remains their priority.
At the request of the police an anonymity order imposed by a court was lifted on Monday 31st December to allow a public appeal.
Magag is described as a black man of Somali origin, 6ft 2ins tall, of slim to medium build, with a beard, although it is possible that he may try to change his appearance.
The last possible sighting of Magag was in the Camden area at 17:20hrs on Wednesday 26th December. He was wearing a khaki robe, a black Berghaus windcheater and navy Converse trainers.
Anyone who sees Magag or knows of his whereabouts should not approach him, but call 999 immediately.
Anyone with other information which they think could be relevant to police efforts to trace the man should contact the confidential Anti-Terrorist Hotline on 0800 789 321.