At least 22 people, including five suicide bombers, were killed in an attack in Afghan capital Kabul on Friday morning, local police said.

Two explosions blew up nearby City Center, a nine-story shopping building in downtown Kabul about 6:40 local time Friday morning, police said.

The first explosion proved to be a suicide car bombing at a guesthouse where most guests were Indian nationals, which resulted in the collapse of the whole building of the guesthouse.

The other two bombers detonated the explosives tied on their bodies near the City Center.

Two remaining terror suspects hid inside the building of City Center or neighboring residence, launched gunbattles with the police and later were killed in the exchange of fire.

Three suicide bombers were killed in the attack, an Afghan intelligence official who declined to be named told Xinhua.

The attack also claimed the lives of two Afghan policemen, said Sayed Abdul Ghafar Sayedzada, head of Crime Investigation Department of Kabul police.

Fifteen civilians, including a number of Indian nationals, were killed in the attack, according to the head of a military hospital.

The attack is the first since Jan. 18, when a group of militants attacked Afghan presidential palace and other government buildings, leaving 12 people, including seven attackers dead.