Tourist police officers
Tourist police officers patrol at the beach in Sousse in Tunisia where 38 holidaymakers were killedReuters

There are "strong links" between the massacre on Tunisia's Sousse beach and the killings at the Bardo Museum in the country's capital, British police have said. Metropolitan Police counter-terrorism officials told the BBC evidence suggested the two attacks are connected.

In the attack on Tunis's Bardo Museum in March, 22 people, mostly foreign tourists, were killed. In the June incident at the Sousse holiday resort, 30 of the 38 people killed were British holidaymakers. "We are now linking evidentially the Bardo Museum investigation with the Sousse investigation," Metropolitan Police Commander Richard Walton told Sky News.

In the wake of the Sousse attack, which was carried out by gunman Seifeddine Rezgui, Tunisian authorities arrested 150 people and charged 15 with terrorism offences. Police believe a second gunman may be involved.

UK officers are helping Tunisian police investigate the attacks."While I cannot go into further details regarding this live investigation, I can confirm that a team of officers, led by a senior detective from the Met's Counter Terrorism Command, are working closely with the Tunisian authorities on both investigations and we have advised the coroner of the connection between the two," Walton said. Terrorist group Islamic State (Isis) has been linked to both attacks.