Gunmen have attacked a university in Charsadda in northwest Pakistan, with reports a gun battle is under way.
The attackers tried to storm their way into Bacha Khan university, injuring at least two people, reports said.
Two explosions have been heard, a police official told Reuters.
Charsadda is about 50 km (30 miles) from the city of Peshawar, the scene of a 2014 massacre by the Taliban of more than 130 students at a school.
Sources told news channel Geo TV "terrorists" had entered the university around 09:30 local time (04:30 GMT).
Police have surrounded the campus, where staff and students are waiting to be evacuated.
20 killed, 50 injured as university comes under attack in NW Pakistan - UPDATED
20 January 2016
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Several gunmen have attacked Bacha Khan University in northwest Pakistan, reportedly killing up to 20 people and injuring 50 others. Students and teachers are alleged to have been on the premises at the time of the attack.
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