The Covid-19 task force on Friday banned street water fights during the Songkran festival for the second year running, on fears it could spread Covid-19.

The Songkran festival holiday this year is from April 12-15, preceded by a weekend.

Wild street battles with water guns and flinging water from pickup trucks were a normal part of what has been described as the world's biggest water fight, until the pandemic struck.

"Water splashing will not happen this Songkran. We must ask you to cooperate with us," the Centre for Covid-19 Situation Administration said on Friday.

They said foam parties would also be banned. The tradition of pouring water over the hands of older people, religious activities and travel between provinces to visit relatives would be allowed.