Karachi (Staff Report): 16 suspects of knife attacks on women in metropolis case, have been detained in Gulistan-e-Jauhar area of Karachi on Thursday, Additional Inspector General (AIG) Karachi Mushtaq Maher said.

The police had also fastened the operation of manhunt and an investigation into the motivation and identity of the attacker.

The number of the victim girls reached to 13 on late Wednesday, in the case of the knife attacks on women in metropolis.

According to details, the latest attack took place at Gulshan Chowrangi, in which a 12-year-old girl was assaulted with a knife .

Police reported, late on Wednesday, the attacker first targeted a woman in the metropolis’Gulshan-e-Jamal area, followed by another attack near Dalmia road.

A student of Federal Urdu University of Arts Science and Technology, was attacked in the metropolis' NIPA Chowrangi vicinity, within an hour of the two attacks , another woman.

Over the next couple of hours, the assailant stabbed a 13-year-old girl In Gulshan-e-Iqbal area.

The mother of the victim, a resident of Gulshan-e-Iqbal's Welfare Colony, told the police, "My daughter was returning from the park when she was attacked. She was treated for the wound on her back at the Jinnah Post Graduate Medical Centre."

The attacker seems to have posed a challenge to the law enforcement authorities, who are yet to nab the assailant.

The incidents have sparked fear and panic among the residents of the metropolis, forcing women to take extra precautions before venturing out.

Earlier, on September 25, the first incident was reported, in the chain of attacks . Since then, a total of 13 attacks have been reported.

"The police and other law enforcement agencies are constantly engaged in efforts to apprehend the attacker," Sindh Information minister Syed Nasir Hussain Shah said. "These attacks will not continue for long and we will arrest this man within a day's time," however, attacker has not been arrested yet.

Karachi Police released pictures, screengrabs from the CCTV footage, of the suspect Saturday night, wherein the assailant can be seen riding a motorbike moments before attacking one of the victims.

"The suspect appears to be a thin man, aged 20-29, appears to be 5 feet, 7-9 inches tall" and usually rides a red motorcycle, DIG East Sultan Khawaja said.