AKIPRESS.COM - The US ambassador to Estonia is resigning, reportedly in frustration at remarks made by President Donald Trump about America's European allies, BBC reported.

James D Melville revealed in a Facebook post that Mr Trump's comments had brought forward his decision to retire, Foreign Policy magazine reported.

The US president has imposed trade tariffs on some EU industries and strongly criticised Nato allies.

Other US diplomats have also left their posts early in recent months.

In January, US ambassador to Panama John Feeley resigned saying he was no longer able to serve under President Trump.

A month earlier, Elizabeth Shackelford resigned from her post in Nairobi where she worked for the US mission to Somalia.

In her letter of resignation to then Secretary of State Rex Tillerson, she said she was quitting because the US had abandoned human rights as a priority, Foreign Policy reported.