Islamabad, Pakistan (CNN) -- Three drone attacks killed 18 suspected militants in Pakistan's tribal region on Wednesday, intelligence officials told CNN.
Two Pakistani intelligence officials said four missiles were fired on a suspected militant hideout in the area of Darga Mandi of North Waziristan, one of the seven districts of Pakistan's tribal region bordering Afghanistan. Four militants were killed in that strike, the officials said.
Earlier, two missiles were fired on a suspected militant vehicle in the area of Angoor Ada, also in North Waziristan, leaving four other people dead, the officials said.
The intelligence officials asked not be named because they were not authorized to talk to media.
In another strike Wednesday, 10 suspected militants died, the officials said. Two missiles fired by a suspected U.S. drone targeted a militant hideout in the North Waziristan village of Danday Darpakhel.
While the United States is the only country in the region known to have the ability to launch missiles from drones -- which are controlled remotely -- U.S. officials normally do not comment on suspected drone strikes.
Separately, the Taliban claimed responsibility for car bomb attack on Tuesday that targeted a police barracks in Kohat City in northwest Pakistan, a spokesman for the group told CNN. The bombing killed at least 20 people and wounded nearly 100 others.
Ihsan Ullah Ihsan, a spokesman for the Pakistani Taliban, said Wednesday that all government installations and security forces, including police, would continue to be targeted by the group.