A suicide attack on a police station in eastern Afghanistan on Tuesday, has left at least 20 officers dead, a source said.
The spokesman for the Provincial Governor of Logar province, Din Mohammad Darwesh, said that the attack on the police headquarters in Logar was carried out by four suicide bombers.
Mohammad confirmed that two of the attackers managed to enter the headquarters, and two detonated the explosives on them in the kitchen and the dining room of the compound.
The bombers were wearing police uniforms and used a police vehicle to gain entrance into the compound, he added.
The Provincial Governor, Niaz Mohamed Amiri, said that the attack killed at least 20 policemen and injured eight.
No group immediately claimed responsibility for the attack.
The US and its allies have reduced their military presence in Afghanistan to a contingent of about 12,500 who are mainly focused on training, and supporting the 350,000 Afghan troops and police.
The Taliban and other fighters had been increasingly targeting Afghan security forces after US and NATO troops ended their combat mission in the country last year.
