A first Olympics visitor has been admitted to hospital in Tokyo as a result of Covid-19, according to a report on Japan's TV Asahi on Friday.

The member of the Nigerian Tokyo Olympics delegation tested positive on arrival at the airport on Thursday evening and was subsequently taken to hospital.

Although the person, who is in their 60s and not an athlete, displayed only mild symptoms the report on TV Asahi stated that they had been hospitalised due to their age and pre-existing medical conditions.

Of those, one is listed as being "Games-connected personnel", while the other three were all contractors due to work at Tokyo 2020, which is scheduled to get under way on 23 July.

In total, Tokyo recorded 1,271 new Covid-19 cases on Thursday, making it the 27th day in a row that registered an increase in cases as compared to the same day in the previous week.

(With input from agencies)