The UN voiced "serious concern" about the Taliban’s persistent threat after the group killed seven people in two suicide attacks in Kabul Thursday, including one targeting a play at a French-financed high school.

The UN voiced "serious concern" about the Taliban's persistent threat after the group killed seven people in two suicide attacks in Kabul Thursday, including one targeting a play at a French-financed high school.

The late afternoon bombing at the Istiqlal High School, attached to the city's long-established French cultural centre, killed a foreign national and came just hours after another suicide attack on a bus carrying Afghan troops in the capital's suburbs killed six soldiers.

The United Nations Security Council issued a unanimous statement condemning the attacks which also voiced "serious concern at the threats posed by the Taliban, Al-Qaeda and other terrorist and extremist groups, and illegal armed groups."

The council "underlined the need to bring perpetrators, organizers, financiers and sponsors of these reprehensible acts of terrorism to justice."

But it said the country would not be deterred by the recent spate of attacks, and that it would continue on its path to development.

"No terrorist act can reverse the path towards Afghan-led peace, democracy and stability in Afghanistan."