An Arik Air Airbus A-330-200 plane has landed at Heathrow Airport after declaring an emergency on route from Nigeria, the Mail Online has reported.

The aircraft had departed from Lagos and was scheduled to land at 18.30 but touched down at 18.57. The nature of the emergency is still unknown.

Flight W3101 took off from Murtala Muhammed International  Airport in Lagos for its 6 hour 45 minute flight and landed at Terminal 4 at Heathrow.

Arik Air is a Nigerian airline operating a domestic, regional and international flight network. It operates mainly from two hubs in Lagos and the capital, Abuja.

The carrier transported its 10 millionth passenger on September 18 2012, on a flight between Johannesburg and Lagos.