Reuters story from the Washington Post
By Zeeshan Haider
Saturday, April 17, 2010; 4:34 AM
ISLAMABAD (Reuters) - Twin bombings at a center for people displaced by a Pakistani military offensive against militants in the northwest killed at least 20 people on Saturday, said an official.
Local commissioner Khalid Khan Omarzai said a suicide bombing was followed by another explosion near the town of Kohat. "The second one was very devastating," he said.
About 300 people were lined up for registration at the center when the attacks began, officials said.
Pakistan's military has carried out a series of crackdowns against homegrown al Qaeda-backed Taliban fighters seeking to topple the U.S.-backed government.
The military says the latest operations, in the Orakzai and Khyber and Kurram regions, have killed hundreds of militants, casualty tolls that were not possible to confirm independently.
Militants have managed to bounce back despite several army offensives, staging bombings that have raised questions about stability in Pakistan, a crucial ally in Washington's bid to stabilize neighboring Afghanistan.
(Writing by Michael Georgy; editing by Bill Tarrant)