The Israeli Foreign Ministry said on Tuesday that it would deport four activists who were detained aboard an aid ship bound for Gaza, including the environmental campaigner Greta Thunberg.

Israeli forces have boarded a charity vessel attempting to reach the Gaza Strip in defiance of an Israeli naval blockade, the Freedom Flotilla Coalition (FFC) said early on June 9.

U.S. President Donald Trump dismissed Thunberg’s claim of being kidnapped. “I think Israel has enough problems without kidnapping Greta Thunberg,” he said.