Trump says 'very hard' to ask Israel to halt Iran war while it's winning

US President Donald Trump said on Friday it is hard to ask Israel to stop its airstrikes against Iran as it is the winning side.

“I think it’s very hard to make that request right now if somebody is winning,” Trump told reporters.

He said he might support a ceasefire in Iran-Israel conflict while negotiations are underway with Iran "depending on the circumstances".

Trump also stressed that Washington has been in contact with Iran, adding that Tehran does not want to engage with European countries.

"Europe is not going to be able to help with this one," he said.

He warned that Iran is weeks or months away from developing a nuclear weapon.

Trump said that Director of National Intelligence Tulsi Gabbard was wrong to suggest there is no evidence Iran is building a nuclear weapon.

Trump questioned Iran’s justification for enriching uranium for civilian energy purposes.

“When you’re sitting on one of the largest oil piles anywhere in the world, it’s a little bit hard to see why you’d need that,” he said, when asked about allowing Iran to enrich uranium up to 3 percent under a potential nuclear deal.