Photo/Illutration Cherry blossom parties are in full swing in Tokyo's Ueno Park in March 2018. (Asahi Shimbun file photo)

The Tokyo metropolitan government on March 4 asked the public to refrain from holding cherry blossom parties in public parks to prevent the coronavirus from spreading.

Large outdoor gatherings with revelers drinking and eating traditionally mark the arrival of the cherry blossom season, which is expected to start in Tokyo’s Chiyoda Ward on March 17, according to the Japan Weather Association.

The metropolitan government specifically asked people not to hold parties at its parks, such as those in the Ueno, Inokashira and Yoyogi districts, as well as areas under its jurisdiction along the Sumidagawa and other rivers.

They are especially popular cherry blossom viewing spots that draw large crowds.

Authorities cited the risk of coronavirus infections spreading in crowded spaces where people tend to spend hours in one spot.

Instead of holding the traditional picnic-style group gatherings this year, the Tokyo government advised those who want to view the blossoms to go for a stroll and admire them while walking past.