Two people were killed after militants stormed the police headquarters in Karachi, according to ambulance officials in Pakistan’s capital.
A police officer and a janitor died in the attack while four police rangers were also injured, Edhi Ambulance Service said.
Up to 10 militants attacked the police station with hand grenades and shots were fired, an eyewitness told CNN. Sindh provincial minister for labour, Saeed Ghani, confirmed the attack to CNN, adding the incident was ongoing.
Pakistan’s Taliban, known as Tehreek e Taliban Pakistan (TTP) claimed responsibility for the attack, according to spokesman Mohammad Khorasani.
Pakistan’s Taliban have been designated a foreign terrorist organization by the US State Department since September 2010.
Pakistani authorities have yet to confirm any group’s involvement.
Rescue teams have reached the site of the attack, according to video released by Chhipa Ambulance Service, in which gunfire could be heard.