Celebrities piled on President Donald Trump after hundreds of migrants, including children, were tear-gassed by U.S. Customs and Border Protection agents at the San Ysidro border crossing Sunday.

Agents used the weapon on a group attempting to break through a fence. The fumes were carried by the wind to other migrants, some of whom were hundreds of feet away, who were not trying to enter the U.S.

Bajan pop star Rihanna used Instagram to describe the incident as terrorism.