US President Donald Trump said in a statement on Monday that he hopes former Central Intelligence Agency (CIA) Director John Brennan files a lawsuit against him over the loss of his security clearance.

The United Nations cannot confirm that it received a letter from Moscow about the United States' violations of international law with regard to Russian diplomatic property in the country, Spokesperson for the Secretary-General Stephane Dujarric told reporters on Friday.

US Senator Dianne Feinstein said in a statement on Thursday that President Trump's decision to revoke former Central Intelligence Agency (CIA) Director John Brennan's security clearance shows that Trump is petty and thin-skinned.

Chairman of the Senate Homeland Security and Governmental Affairs Committee Ron Johnson said in an interview on Thursday that he has no problem with US President Donald Trump taking away the security clearance of former Central Intelligence Agency (CIA) Director John Brennan, because the ex-spy chief had abused that privilege.

US President Donald Trump's claims that he did not collude with Russia are false, former Central Intelligence Agency (CIA) Director John Brennan said in an opinion article on Thursday, just one day after Trump revoked the ex-spy chief's security clearance.

A federal court in Montana has ruled that TransCanada Corp, the operator of Keystone XL oil pipeline, must conduct an additional environmental review of the pipeline's new route, a move that could delay the implementation of the project and become a setback for the Trump administration, media reported