A 40-year-old American woman, who had been living in Nepal on a business visa, was gang-raped by four local men in a hotel room in Kathmandu, the nation's capital, media reports said Monday, citing police.

The incident took place at the Global Hotel in Thamel, a tourist district of Kathmandu, on June 14, a senior police official told Agence France-Presse, or AFP. The victim, who had been living in Nepal since 2013, was in a relationship with a Nepali national and police suspected him to be one of the four men who attacked her, SINA, a Chinese news agency, reported citing state-run Xinhua.

"The couple booked a room in Thamel and had a couple of drinks. According to victim's statement, she was left alone in her room unconscious and was raped during the night," Senior Superintendent Hemant Bahadur Pal, a spokesperson at the Metropolitan Police Commissioner Office, reportedly told Xinhua, according to SINA.

Pal also told AFP that the woman had spent the evening with the men “and they had been drinking.”

"They later went to a hotel where she passed out. When she woke up she realised that she had been raped."

Two of the four suspects have reportedly been arrested but have denied that they raped the woman, Pal reportedly said.

"It is very rare in Nepal to have cases of single or gang rapes where foreign victims are involved. We decided to keep the accident silent because of the gravity of the circumstances," Inspector Chhiring Kippa Lama, chief of Tourist Police Unit, reportedly told Xinhua.