Five suicide bombers were killed on Tuesday afternoon when at least seven armed insurgents attacked different parts of Afghan capital Kabul including U.S. embassy and the NATO's headquarters, Kabul police said.

"Five suicide bombers have been eliminated by security forces since the attacks broke out in Kabul Tuesday afternoon," Kabul police said in a statement.

The attack begun at around 13:20 local time on Tuesday when at least four insurgents armed with weapons and suicide vests seized an under-construction building in Abdul Haq Square near the U.S. embassy in Kabul.

"Four armed assailants entered an under-construction building and opened fire on some buildings in ninth sub-district, two attackers had been killed," the statement said.

It also said the fighting is going on and security forces are trying to capture or kill the remaining attackers who are battling security forces.

The attackers had begun firing on U.S. embassy building, the main NATO-led ISAF headquarters in Kabul and other government office buildings including an intelligence agency installation.

Minutes after the attack in Haq Square, three other suicide bombers were killed in different parts of Kabul, the statement said.

"A policeman was killed and four others including a civilian were injured in two suicide bombings that rocked western part of Kabul," it said.

"A small group of insurgents attacked the vicinity of the U.S. Embassy and International Security Assistance Force (ISAF) Afghanistan headquarters today, firing from outside the compound using small arms and rocket-propelled grenades. The attack started around 1:30 p.m. (local time)," the ISAF said in a statement.

Afghan National Security Forces and coalition forces immediately responded to the attack, and are still on the scene. Coalition forces are providing air support, ISAF said.

There are no reports of ISAF casualties at this time, it said.

Earlier, Afghan Interior Ministry said five civilians were injured in Haq Square attacks.

Taliban insurgents have claimed responsibility for the Tuesday' s multiple attacks.