Afghan security force members stand at the site of an attack in Kabul, Afghanistan, on Dec. 28, 2017. At least 40 people including two assailants were killed and many others injured after a double suicide bombing rocked a building in western neighborhood of Afghan capital of Kabul Thursday, sources and witnesses said. (Xinhua/Rahmat Alizadah)

KABUL, Dec. 28 (Xinhua) -- At least 40 people including two assailants were killed and many others injured after a double suicide bombing rocked a building in western neighborhood of Afghan capital of Kabul Thursday, sources and witnesses said.

The toll is likely to go up as many were shifted to multiple hospitals and a number of them remained in critical conditions, officials said.

The attack came roughly at 10:30 a.m. local time when two suicide bombers detonated their jackets at the building where a cultural association and a local media office are located.

"A public gathering was underway in the building before the blasts and the two attackers were also killed on the spot. A probe is still on and more details will be shared with media later in the day," a security source told Xinhua near the site.

He said the targeted building is home to a local news agency and a cultural center.

Security forces have cordoned off the area for precautionary measures.

No group has claimed responsibility for the attack yet.