Thirteen people were killed, including six in police firing to quell violence, after a bomb ripped through one of the city’s oldest mosques during Friday prayers. Mecca Masjid, the scene of a bomb explosion Friday, is south India’s biggest mosque and can accommodate up to 50,000 people. The 17th century mosque, a major tourist attraction in the city, has witnessed many protests before, but this was the first time that a bomb blast occurred in its premises.