Gunmen stormed a Pakistani police training academy in the southwestern city of Quetta late on Monday night, killing at least 48 people and wounding more than 100, hospital officials said early Tuesday morning.
Some 200 trainees are stationed at the facility, officials said, and some had been taken hostage.
"Forty eight bodies have been brought to the hospital," said Wasim Beg, senior doctor at Quetta's Civil Hospital.
Mir Sarfaraz Bugti, home minister of Baluchistan province, of which Quetta is the capital, had confirmed early on Tuesday that five to six gunmen had attacked a dormitory inside the training facility while cadets rested and slept.
An operation to clear the facility lasted five hours.