Authorities closed schools and suspended internet services in a northern Indian city on Monday, officials said, a day after four people were killed in clashes sparked by an official survey probing whether a 16th-century mosque was built on a Hindu temple.

The death toll from violent protests in India sparked by a survey into whether a centuries-old mosque was built on a Hindu temple has risen to six, an official said Tuesday. Hindu activist groups have laid claim to several mosques they say were built over Hindu temples during the Muslim Mughal empire centuries ago.

The death toll from violent protests in India sparked by a survey into whether a centuries-old mosque was built on a Hindu temple has risen to six, an official said on Tuesday. Around 20 police officers were also wounded during the violence on Sunday in Sambhal in India’s northern state of Uttar Pradesh, district magistrate Chirag Goyal told AFP.

The clashes between locals and police over the Mughal-era Shahi Jama Masjid in Sambhal, which is at the centre of a legal dispute claiming that it was built on a Hindu temple site, led to the death of four Muslim youths and resulted in injuries to at least 20 police officers on Sunday.

Cases filed against over 2,000 people a day after four Muslim men killed in violence over survey of a Mughal-era mosque.

Authorities closed schools and suspended internet services in a northern Indian city on Monday, officials said, a day after four people were killed in clashes sparked by an official survey probing whether a 17th-century mosque was built on a Hindu temple.