A Swiss couple have been attacked at Fatehpur Sikri, a monument 44km (27 miles) from the Taj Mahal, Indian police say.

A senior police officer told reporters that four men attacked Quentin Jeremy Clerc and Marie Droz after an argument on Sunday in Agra district.

Local mediainfo-icon reported on Wednesday that Mr Clerc had suffered a fractured skull and Ms Droz had fractures to her hand.

They are being treated at a hospital in Delhi. No arrests have been made.

Mr Clerc told The Times of Indiainfo-icon newspaper that the argument started after the men started taking pictures of them.

The report quoted police as saying they had forced Ms Droz to take selfies with them, and continued to follow them for an hour, before attacking them with sticks.

Agra's Superintendent of Police, Amit Pathak, said the suspects had been identified and would be arrested soon.

"The couple came to the police station and we took them to a hospital for treatment. They did not want to file a report, but we have still registered a case against four men," he said.

India's Foreign Minister Sushma Swaraj on Thursday asked the government in Uttar Pradesh state to submit a report in the case.