LAHORE - The Punjab chief minister has made district police officer Kasur an officer on special duty (OSD), a Punjab government spokesman said.
Sharif also constituted a joint investigation team (JIT) headed by Additional IG (Investigation) Abu Bakar Khuda Bux to investigate the incident and submit a report within 24 hours.
"I will not rest until justice has been provided to the affected family," Sharif was quoted as saying.
Senate Committee Chairman Rehman Malik called the incident unforgivable and ordered that the Punjab police submit a report on the matter within the next five days.
Malik also said that the Inspector General of Punjab should personally investigate the matter and treat it as a challenge.
Chief of Army Staff Gen Qamar Bajwa condemned the "cold-blooded murder" and directed immediate support to the civil administration to arrest the criminals and bring them to justice.
The Jamiat Ulema-i-Islam-Fazl on Wednesday presented adjournment motions in the Senate and the National Assembly to discuss the failure of the government and local law enforcers to recover Zainab.
"The tragedy happened because the girl was not recovered in time," the adjournment motion claimed. "This is not the first time such an incident has taken place in Kasur."
By Wednesday evening, the Chief Justice of Pakistan, Mian Saqib Nisar, had taken notice of the incident and sought a report from the Inspector General of Police, Punjab, within 24 hours.