At least 15 people, including police and civilians, were injured Thursday during a protest here against the hike in transport fares in Islamabad and its twin city of Rawalpindi.

As the protesters raised slogans and pelted stones, a police contingent reached the spot and fired tear gas and used batons, resulting in injuries to several people, Online news agency reported.

The protesters stoned the police, injuring six police officials. The army and the Pakistan Rangers were called to control the situation. Troops later took over the area.