At least two civilians were killed and dozens injured in the latest attack in Afghanistan's restive Helmand province on Tuesday, officials said.
The blast that was caused by a truck loaded with explosives took place in Lashkar Gah, the provincial capital of Helmand, where the offices of the provincial governor and the police headquarters are located.
"It was a suicide truck bomber detonating his vehicle at the gate of police headquarters," provincial police spokesman Farid Ahmad Obaid told AFP.
“A woman and a man were killed while 51 others included two policemen were injured," Omar Zawak, spokesman for the provincial governor said, adding most people wounded while in their houses, some of them seriously, by broken glass.
Security officials said three militants were involved in the attack, and one of them killed.
There was no claim of responsibility but Afghan officials point the Taliban that launched their spring offensive in late April despite ongoing informal peace talks with the Afghan government in Qatar, Dubai and Norway.
In a separate attack, a NATO convoy of foreign troops was hit by a suicide car bomb on main road between Kabul's airport and the US embassy, near a busy market area.
Hospital officials announced at least 19 civilians were injured, including three children. One of the injured later died, the officials confirmed.
Reuters reported Damage on NATO vehicles but there was no mention of any casualties of foreign troops.
The Taliban has claimed the Kabul attack, according to the local media.