A project to fix and paint the Lincoln Memorial Reflecting Pool, which President Donald Trump said would cost $1.8m (£1.33m), is now expected to cost $13.1m, federal records show.

Trump awarded the contract for the work to a Virginia company he had previously used to repair pools at one of his golf clubs, going around a requirement that mandates the government see competing offers.

That decision prompted a lawsuit from a nonprofit organisation that asks for work to be halted, arguing Trump ignored laws that limit changes to historical landmarks.

The pool makeover began over the weekend as part of Trump's bid to beautify the US capital ahead of America's 250th birthday celebrations this summer.

When asked about the project on Tuesday, Trump told reporters that "for the first time since1922 [the reflecting pool is] going to work properly".