HERAT, Afghanistan, Jan. 19 (Xinhua) -- Two suicide bombers were killed Saturday as their explosive vests went off prematurely in Guzara district in Afghanistan's western province of Heart, an official said.
"Two suicide bombers riding a motorcycle were trying to target the district office building through the main gate but their explosive were detonated prematurely near the compound killing both on the spot," the administrative chief of the district Nisar Ahmad Popal told Xinhua.
He said no member of Afghan security force or civilian was harmed in the blast in the province 640 km west of capital city of Kabul.
The blast which took place at about 1:30 p.m. local partially damaged the district building and smashed the windowpanes of building near the site.
The government troops immediately cordoned off the area shortly after the blast for precautionary measures.
No group has claimed responsibility for the attack, but Taliban insurgents were suspected of carrying out such attacks. The Taliban has been waging an insurgency since its regime was toppled by a U.S-led invasion in late 2001.
On Wednesday, Taliban launched a coordinated suicide attack against an Afghan National Directorate of Security (NDS) or intelligence agency office building in Kabul, killing one NDS service men and injuring more than 30 civilians in an attack that also left all six bombers dead.