Tehreek-i-Taliban Pakistan (TTP) has claimed responsibility for the attack on Bacha Khan University Charsadda district in Khyber Pakhtunkhwa province where at least 15 people have been killed so far and 20 others injured.
TTP commander, Omar Mansoor, said that the attack was carried out by four attackers.
Meanwhile, Director-General of the Inter-Services Public Relations (ISPR) said four terrorists have been killed so far.
All buildings and roof tops have been taken over by the Army, he added.
Around 90 percent of the buildings have been cleared on campus.
Army operation is underway as over 3,000 students are reported to be inside premises, Express Tribune reports.
In total, 11 blasts have been reported till now and a state of emergency has been declared in the hospitals.
An Edhi volunteer said he has seen the bodies of at least 15 persons, Dawn tweeted.
At the time of attack, an event regarding the death anniversary of Pashtun politician Khan Abdul Ghaffar Khan, known as Bacha Khan, was being attended by a large number of students inside the university.
Armed assailants scaled the university walls and opened fire in the morning today.
Extensive firing continues in the area and heavy contingents of elite force have been deployed, including aerial support given by the Army choppers.
The attack is reminiscent of the deadly Army Public School attack in Peshawar in 2014.
