At least five people, including two doctors, were gunned down Monday and three others were injured in different parts of Pakistan’s port city of Karachi, police officials said.

At least five people, including two doctors, were gunned down Monday and three others were injured in different parts of Pakistan's port city of Karachi, police officials said.

A doctor was shot dead in Manghopir neighborhood in western district and another was gunned down around noon at Tariq Road in the eastern part of the city.

They were identified by police as Dr Sher Ali and Dr Naseem Zaidi.

The other two victims were killed in central district when unknown attackers burst into a tailor's shop and opened fire.

The owner and a worker were killed and three others were injured.

Police are already carrying out operations against criminal groups to curb political killings.

The fifth killing took place in Gulshane Iqbal town where a young man was shot dead by gunmen riding a motorbike, Pir Mohammad Shah, a senior police officer told AFP.

Majlise Wahdatul Muslimeen (MWM), an alliance of Shiite Muslim groups held protest rallies and sit-ins in different parts of Karachi to condemn the killings.