Two suicide bombers attacked a restaurant in Somalia's capital Mogadishu on Saturday, wounding several people, police said, and killing one victim, according to a witness.

"There were two suicide bombers who attacked the Village restaurant. The two of them have died and other people who stayed in the place were injured. We are still investigating the casualties," said Abdi Adan, a Somali police officer.

A witness to the attack, Ahmed Salad Ibrahim, said a security guard at the restaurant had been killed in the blast, a report police said they could not immediately confirm.

Another witness, Idle Husien, said there had been a "heavy exchange of gunfire before the heavy explosions".

"I'm not far away from the place and I can see people injured and the severed dead bodies of the suicide bombers," Husien said.

The Village is owned by a restaurateur of Somali origin who recently relocated to Mogadishu from London.

Another of his restaurants, also named the Village and located in Mogadishu, was hit by a suicide attack in September that killed 18 people, including three journalists.