A police officer in northern India was killed trying to calm a mob angered by reports that cows, regarded by Hindus as holy, had been slaughtered in the area.

BBC Hindi’s Nitin Srivastava reports from Bulandshahr in the state of Uttar Pradesh, where the incident happened.

It was sometime after 10:00 local time (04:30 GMT) on Monday when Inspector Subodh Kumar Singh sat in his official vehicle and asked the driver to make the SUV “fly”. The driver, Ram Asrey, drove as fast as he could.

Cows, which are considered holy by India’s majority Hindu population, have become a flashpoint in India in recent years.

Many states, including Uttar Pradesh, have started enforcing bans on cow slaughter since the Hindu nationalist Bharatiya Janata Party came to power in 2014.

So-called cow vigilantism has been on the rise and has led to several killings in the past few years. But an attack on police is unheard of.

An 18-year-old protester was also killed in the violence. Police have arrested four people over Inspector Singh’s killing and are looking for 23 others.

And the six officers inside the police station had started frantically calling the district headquarters. It’s unclear if they called Mr Singh directly or if he was ordered to go there as part of reinforcements.

Cow slaughter

When Mr Singh arrived, he approached the mob, hoping to pacify them. Eyewitnesses told the BBC that, unlike some of the other policemen, Mr Singh was not wearing a bulletproof jacket and did not have his pistol in his hand.

But, eyewitnesses say, the villagers only got angrier and more aggressive even as more police officers began to arrive.

It’s unclear when the violence broke out but one eyewitness, a man who works in a school near the police station, told the BBC that he could hear the two sides fighting for more than a half hour and gunshots rang out at regular intervals. He says he locked himself in the school’s bathroom.

Police told the BBC that some members of the mob were armed with homemade revolvers and opened fire first. But eyewitnesses, some of whom were watching from the other side of the road, said the violence broke out only after the police fired into the air to try and disperse the crowd.

Some officers managed to flee inside and hide in the police station, but Mr Asrey and another officer ran to the SUV to escape.

Cow slaughter

“That’s when I realised Mr Singh had been hit by a brick and was lying unconscious,” he says. So, he put him in the car, got into the driver’s seat and started driving away from the mob, which had blocked the road, and towards fields.

Mr Asrey says the mob followed them and tried attacking the vehicle.

“The wheels of the vehicle got stuck. We had no choice but to get out and run.”

Mr Asrey was injured but survived. He doesn’t know how Mr Singh died.

But a video, which has gone viral since Monday afternoon, shows Mr Singh slumped out of the SUV and motionless. Men could be heard in the video asking whether he was dead or alive while gunshots kept going off in the background.

The inspector, who has a wife and two sons living in Noida near Delhi, was declared dead when he was brought to the hospital.

The post-mortem report says that he suffered a bullet wound above his left eyebrow. A police officer told the BBC that Mr Singh’s three mobile phones and pistol were missing.