Four American and British citizens working in Japan ahead of the Olympic Games have been arrested for taking cocaine.

The four suspects, who have been staying in accommodation in the ward of Minato in the Japanese capital Tokyo, arrived in the country between February and May.

The American and British workers were carrying out maintenance for electrical systems at Olympic venues ahead of the Tokyo 2020 Games.

The local police said the four men, including Brit John Benjamin Lockwood, 46, and American Dalton Ray Bouquet, 22, had used cocaine at some point in July.

Between 3rd and 4th July, the four suspects were arrested for violating the Narcotics and Psychotropics Control Act. All four suspects denied the charge.

At around 8pm on 2nd July, the group went to a bar in the entertainment district of Roppongi.

Sometime later, Bouquet allegedly broke into a nearby home and the police arrived to detain him.

It is unclear how the other three were implicated in the alleged break-in and how or when they were arrested.

However, a subsequent urine test reportedly showed up positive for cocaine and the four suspects face drugs charges as a result.