The Australian police on Thursday announced a record Australian $1 million ($633,000) reward for any information to arrest an Indian nurse who fled to India after allegedly murdering a 24-year-old woman on a beach in Queensland in 2018.

Toyah Cordingley was walking her dog on Wangetti Beach, 40km north of Cairns in Queensland when she was killed on October 21, 2018, Queensland police said in a news release.

Rajwinder Singh, 38, who worked as a nurse in Innisfail, is the key person of interest in the case but fled the country two days after Cordingley was killed, leaving behind his job, wife and three children in Australia, the statement added.

The reward is the largest ever offered by Queensland police, for information from the public in the ongoing search for Singh, with Detective Acting Superintendent Sonia Smith noting “the reward is unique”.

“We know that Singh departed Cairns on October 22, the day after Toyah was murdered, and then flew from Sydney to India on the 23rd. His arrival in India has been confirmed,” she said.

Singh is originally from Buttar Kalan, Punjab, police said.

“We have confirmed today that the last known location for Singh was India.”

An investigation centre has also been established in Cairns and police officers from across the state who can speak both Hindi and Punjabi have been flown in, the statement said.

These officers will be able to receive information from anyone in India who might know Singh’s whereabouts via WhatsApp, it said.