Indian doctors in Kolkata said on Tuesday they had resumed a strike to protest against the brutal rape and murder of a colleague because their demands for hospital safety improvements had not been met.

The discovery of the 31-year-old’s bloodied body at a state-run hospital in the eastern city in August rekindled nationwide anger at the chronic issue of violence against women.

Doctors briefly returned to limited work in emergency departments last month but decided at a union meeting to cease work again.

Union spokesman Aniket Mahato said the West Bengal state government had failed to deliver on its promises to upgrade lighting, CCTV cameras, and other security measures in hospitals.

“The state government has failed to provide safety and security in the workplace,” he told AFP.

Mahato said doctors would return to the streets on Tuesday night to insist the government meet its pledges and to demand justice for their murdered colleague.

Tens of thousands of ordinary Indians joined in the protests following the August attack, which focused anger on the lack of measures for female doctors to work without fear.

One man has been detained over the murder but the West Bengal government has faced public criticism for its handling of the investigation.

Authorities sacked the city’s police chief and top health ministry officials.

India’s Supreme Court ordered a national task force last month to examine how to bolster security for healthcare workers, saying the brutality of the killing had “shocked the conscience of the nation”.

The gruesome nature of the attack drew comparisons with the 2012 gang rape and murder of a young woman on a Delhi bus, which also sparked weeks of nationwide protests.