Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. U.S. Drone Strike Kills 5 in NW Pakistan VOA News 14 February 2010 Undated handout photo provided by U.S. Air Force shows MQ-9 Reaper, armed with GBU-12 Paveway II laser guided munitions and AGM-114 Hellfire missiles Photo: AP Undated handout photo provided by U.S. Air Force shows MQ-9 Reaper, armed with GBU-12 Paveway II laser guided munitions and AGM-114 Hellfire missiles Pakistani officials say a U.S. drone strike in the country's lawless northwest tribal belt has killed five people. Authorities say two missiles hit a building Sunday in North Waziristan, an area on Pakistan's border with Afghanistan that is used as a sanctuary by al-Qaida and the Taliban. Officials say the identity of the people killed in the strike is not yet known. The U.S. has stepped up its drone attacks in the region since a bomber killed seven CIA employees late last year in Afghanistan. In a separate development, Pakistani officials say an explosion in Sindh province, in the south of the country, has killed three people and wounded at least nine others. There is no word on what caused Sunday's blast in Dadu, but authorities are investigating it as a bombing. There has been no claim of responsibility. Pakistan has been wracked by a Taliban-led insurgency that has killed hundreds of people in the past few months. Some information for this report was provided by AP, AFP and Reuters. .