Washington, Mar 15 (IANS): Richard Grenell, the US Ambassador to Germany, has been receiving threats including at least one against his life, the media reported on Friday.

In January, he received a letter, which was sent directly to him, asked him to leave Germany or he would be killed, CNN reported.

Signed by the "Society for the New Truth" it was one of several threats that have been sent to the embassy.

Grenell's spokesperson, Joseph Giordono-Scholz told CNN that "we do not publicly discuss security issues and procedures".

Grenell is a controversial figure in his host country, warning the German government against pursuing a gas pipeline to Russia, using Chinese technology and business contracts with Iran.

A former Republican political operative and spokesman to the UN, Grenell has carved an incendiary path since presenting his diplomatic credentials to German Chancellor Angela Merkel in May 2018, clashing with officials, businesses and the media.

Trump's 52-year-old envoy has become such a polarising figure that a large protest against him had been planned for early 2019 in Berlin.