The UN Security Council on Thursday strongly condemned the terrorist attack that killed 11 Chinese construction workers in Afghanistan.

Lauro Baja, ambassador of the Philippines and president of the council, said in a press statement that the council urged all states to cooperate actively in an effort to find and bring to justice the perpetrators, organizers and sponsors of this attack.

"Members of the council reaffirms that terrorism in all its forms and manifestations constitutes one of the most serious threats to international peace and security and that any acts of terrorism are criminal and unjustifiable, regardless of their motivation, whenever and by whomsoever committed," the statement said.

It expressed the determination of the 15-member council to combat all forms of terrorism in accordance with the responsibilities under the Charter of the United Nations.

Reports reaching here said that on June 10, a group of some 20 armed men charged into the Chinese construction workers' compound, about 36 km outside the city of Kunduz. The attack, which reportedly lasted 10 minutes, left 11 killed and 5 wounded, one of them in critical condition.

The victims were part of the team working on the Kunduz-Baghlan road, a project funded by the World Bank.