The health ministry in Gaza has said that at least 12 people had been killed when Israel struck a United Nations school where thousands of displaced Palestinians were sheltering, AFP reports.

The ministry reported in a statement “12 martyrs and upwards of 54 wounded so far as a result of targeting Al-Fakhura school, which is sheltering thousands of displaced people in Jabalia (refugee) camp in the northern Gaza Strip”.

An earlier statement by the interior ministry said it was an “occupation (Israeli) strike” that hit the school. There was no immediate comment from Israel.