NEW YORK: American filmmaker, political and social activist Michael Moore has sent Republican presidential candidate Donald Trump a letter denouncing him on his recent anti-Muslim statements and his call to "ban all Muslims from coming to the United States".

In his letter, which he posted on his Facebook page, Moore said Trump's anti-Muslim statements "were made in depression and insanity".

Moore also published a picture of himself in front of Trump Tower in New York with the caption "We are all Muslim."

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During his campaign stops, Trump called for a "total and complete" block on all Muslims entering the US and an end to Muslim immigration to the country.

In the letter, Moore reminded Trump that the US today is no longer a country of "angry white guys", that the future US president will be chosen by more diverse voters and that "fortunately" the US no longer looks like Trump or his supporters." We are all Muslim. Deal with it."