"... Obviously as it is a concern to countries in the region as well as a concern to us," US Assistant Secretary of State for South and Central Asia, Richard Boucher said sharing concerns with the member countries during SAARC Conference held in Colombo last week.

"Terrorism is a threat to the people of the region, to the people of nations like Pakistan, but also a threat to the wider world," he said in a press conference in Colombo, a transcript of which was released in Washington.

Welcoming Pakistan's decision to look into the cause and source of the Kabul bombing, Boucher has called for a global cooperation to fight the menace.

"We all need to understand that situation. We all need to do all that we can to correct whoever was involved in that bombing. But the only way we are ever going to get a hold of this problem is through cooperation of the nations of the region and through cooperation with the nations of the region," he said.