British police on Wednesday arrested a 30-year-old man in connection with the 2010 murder of influential Pakistani politician Imran Farooq in London.

Farooq, 50, a founding member of the Muttahida Qaumi Movement (MQM), was stabbed and beaten to death in Edgware, northwest London, as he returned home from work in September 2010.

Scotland Yard police were questioning the suspect at a central London police station after he was arrested at an address in Waltham Forest, east London.

They were also searching a property in the area, according to a statement from police.

Detectives believe that Farooq was under surveillance in the days and weeks before his murder and have already arrested one man and given the names of two others they want to trace in connection with the killing.

A 52-year-old man was arrested at Heathrow Airport in June 2013 on suspicion of conspiracy to murder, after landing on a flight from Canada, and remains on bail.

Detectives are looking for 29-year-old Moshin Ali Syed, who was in Britain from February to September 2010.

They also want to speak to Muhammad Kashif Khan Kamran, 34, who was in Britain in September 2010, and have released CCTV footage of the two men.

The two men lived in Stanmore, a suburb neighboring Edgware, prior to the murder, police said.