ANKARA — Turkish President Tayyip Erdogan said on Monday the United States' decision to recognize Jerusalem as Israel's capital had made Washington complicit in violence.

His comments on the US move have strained fragile relations between Turkey and Israel, which only restored ties last year following a six-year diplomatic rift. Erdogan, a frequent critic of Israel, has said the decision by US President Donald Trump will spark violence in the region.

"The ones who made Jerusalem a dungeon for Muslims and members of other religions will never be able to clean the blood from their hands," Erdogan said in a speech in Ankara.

"With their decision to recognize Jerusalem as Israel's capital, the United States has become a partner in this bloodshed," he said, adding he did not consider Trump's decision binding.

Trump's decision last week overturned longstanding US policy on Jerusalem, a city holy to Jews, Muslims and Christians. The status of Jerusalem has been one of the biggest obstacles to a peace deal between Israel and the Palestinians for generations.

Over the weekend Erdogan referred to Israel as a "terror state" and an "invader state", prompting Israeli Prime Minister Benjamin Netanyahu to fire back.

Last year Israel and Turkey restored ties following a six-year rupture that occurred after Israeli marines stormed an aid ship in 2010 to enforce a naval blockade of the Hamas-run Gaza Strip, killing 10 Turkish activists on board.

The normalization of ties between both countries has been driven in part by the prospect of lucrative Mediterranean gas deals as well as by mutual concerns about regional security. — Reuters