US condemns terrorist attack in Pakistan

"This attack against civilians at a mosque during Friday prayers is an appalling reminder that terrorism threatens all countries in the region, and we send our deepest condolences to the loved ones of those killed as well as our thoughts and prayers to those injured," said Ned Price, spokesman of the national security council, White House.

The United States, he said, stands with the people of Pakistan against the scourge of terrorism and will continue to work with the government of Pakistan against those "who commit such outrageous attacks".

At least 28 people, including five children, were killed and 30 others injured when a Taliban suicide bomber shouting 'Allahu Akbar' blew himself up inside a mosque packed with worshippers for Friday prayers in Mohmand Agency in Pakistan's restive northwest tribal region.