LAHORE: A Muslim cleric is among a dozen people being investigated for using mosque loudspeakers to order protests against alleged blasphemy by Christians which erupted into mob violence in Pakistan earlier this week, a senior police official said.

More than 80 Christian homes and 19 churches were vandalised when hundreds rampaged through a Christian neighbourhood in Jaranwala in Punjab province on Wednesday.

Reports that holy Quran had been desecrated were broadcast from mosques, with one cleric telling his followers it was “Better to die if you don’t care about Islam”.

“That cleric should have understood that when you gather people in such a charged environment... in a country in which people were already very sensitive about (blasphemy) it is like adding fuel to fire,” Punjab police chief Usman Anwar told AFP during an interview in Lahore on Friday.

“He’s not saying that go and burn their houses. But when the mob gathers, it’s really impossible to control that.”

He said the cleric was one of 12 people who were being investigated for using mosque loudspeakers, while more than 125 people have been arrested linked to the vandalism that followed, thanks to the use of facial recognition technology, mobile phone geo-fencing and data gathered from social media. At its peak, more than 5,000 people had poured into the neighbourhood from other districts, with smaller mobs spreading to narrow alleys where they ransacked homes.

Christians who fled in their hundreds have criticised police for failing to protect their property, with some sheltered by their Muslim neighbours.