Terrorists wearing uniforms attacked the Manawan police training centre on the outskirts of Lahore on Thursday.
Gunshots were heard at the Manawan police training centre in Lahore, Geo TV reported.
Rana Sanaullah, Punjab law minister, said the situation was under control and search operations underway.
He said that the attack had been repulsed.
On March 30, Pakistani security forces stormed a police training academy on the outskirts of this Pakistani city, ending an eight-hour siege by a group of heavily armed attackers who killed 27 people and took over 800 hostage.
Four of the terrorists were killed, while three were captured alive.