Taliban militants killed four police officers by targeting a police vehicle with a roadside bomb and wounded six in an attack on a police station in northwest Pakistan early Thursday, police and the insurgents said.

The bomb killed four officers in a police vehicle carrying reinforcements sent to respond to the attack on a police station in Lakki Marwat, a town in Khyber Pakhtunkhwa province bordering Afghanistan. Six officers were wounded in the attack at the police station.

Local police officer Ashfaq Khan said a search was underway for the militant suspects who attacked the police station in Lakki Marwat and later targeted the police vehicle with a bomb.

The Pakistani Taliban claimed responsibility for both attacks. The group know as Tehreek-e-Taliban Pakistan or TTP is separate but allied with Afghanistan’s Taliban. There has been an uptick in attacks in Pakistan after the Pakistani Taliban ended a cease-fire with the government of Pakistan.

TTP has been emboldened since the Afghan Taliban seized power in Afghanistan in 2021 when U.S. and NATO troops were leaving the country after 20 years of war. Many TTP leaders and fighters have found sanctuaries in Afghanistan since the Taliban takeover.

Pakistan has seen innumerable militant attacks in the past two decades but there has been an uptick since November, when the TTP ended a monthslong Afghan Taliban-brokered cease-fire with the government of Pakistan.