“We’re reviewing all student visas,” the official said, saying the State Department was “constantly monitoring what people have said” on social media, which visa applicants are now required to show.

Caterham was due to mark the occasion quietly with her family, taking the day “at her own pace”, the care home where she lives said.

Ahead of the offensive, the Israeli military said the call-up of the reservists would begin in early September.

“Green power in Africa lowers energy costs, diversifies supply chains and accelerates decarbonisation for everyone.”

“We considered that could be interpreted as suggesting that white skin was superior to black skin,” ASA said in a statement.