Benjamin Netanyahu has condemned Spain's socialist prime minster for issuing what he called a 'blatant genocidal threat' against Israel.

Spanish leader Pedro Sanchez announced an arms embargo on Israel earlier this week and was criticised for reportedly expressing regret over the country not having nuclear weapons to 'stop Israel'.

Addressing journalists in a press conference on Monday, Sanchez said: 'Spain, as you know, doesn't have nuclear bombs, nor aircraft carriers, nor large oil reserves. We alone can't stop the Israeli offensive. But that doesn't mean we won't stop trying, because there are causes that are worth fighting for.'

His remarks appeared to anger Netanyahu, who today accused Spain of threatening Israel.

'Spanish PM Sanchez said yesterday that Spain can’t stop Israel’s battle against Hamas terrorists because ‘Spain does not have nuclear weapons.’ That’s a blatant genocidal threat on the world’s only Jewish State', he said.