A 50-year-old man is being held at Heathrow Airport in London on suspicion of a terror offence, police have said.

The man was apprehended by counter-terrorism police as he got off a plane from Cairo, said the Metropolitan Police in a statement.

He was arrested on suspicion of "possession of articles containing information of a kind likely to be useful to a person committing or preparing an act of terrorism".

Police are also searching a home in north London in connection to the arrest, which they said was not related to Isis or Syria.

"The arrest was pre-planned and not in response to any immediate danger but as part of an ongoing investigation into allegations of terrorist activities overseas," said the statement.