Turkish President Recep Tayyip Erdogan yesterday described Israel as a "state of occupation" which used "terror" against the Palestinians, as he stepped up his criticism of the US recognition of Jerusalem as its capital.

Erdogan has been bitterly opposed to the decision of US President Donald Trump to recognise Jerusalem and has called a summit of Islamic countries on December 13 in Istanbul.

"Israel is a state of occupation," Erdogan said in a speech in Istanbul, referring to Israel's continued occupation of the West Bank and settlement building.