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. Blast Targets Afghan Provincial Governor VOA News 07 January 2010 Khost Governor Tahr Khan Sabari (Nov 2009 file photo) Photo: AP Khost Governor Tahr Khan Sabari (Nov 2009 file photo) An explosion has ripped through the office of an Afghan provincial governor, wounding him and several other senior officials. Afghan officials said Thursday that the bomb was hidden in some trash just outside the office of acting Khost governor Tahr Khan Sabari and sprayed him with broken glass. Also in Khost Thursday, Afghan security forces said they killed two would-be suicide bombers. Khost borders on the tribal region separating Afghanistan from Pakistan, an area thought to be a stronghold for Taliban and al-Qaida militants. On Wednesday, an explosion at a market in Khost wounded at least nine people. And just over a week ago, a suicide bomber blew himself up inside a U.S. outpost, killing seven intelligence officers. Elsewhere Thursday, a spokesman for international forces in Afghanistan blamed Taliban-led militants for firing rockets into central Kabul. Afghan officials said three people were wounded. The attack comes the same day that several prominent United States lawmakers visited the Afghan capital, including former presidential candidate, Senator John McCain of the U.S. state of Arizona. McCain voiced his support of the U.S. military strategy in the region, including the use of drones (pilotless aircraft) to target militants. He said the use of drones effective, saying they have knocked al-Qaida and other Islamic extremist groups "off-balance." On Wednesday, a roadside bomb in eastern Nangarhar province bordering Pakistan killed four Afghan children and a policeman and injured at least 40 others. A NATO spokesman said nine alliance troops were among those hurt in the blast. Afghan officials said some of their security officers also suffered injuries. An Afghan official told the Associated Press the NATO troops were visiting a road construction project funded by the United States when the bomb went off. Some information for this report was provided by AP, AFP and Reuters. .