Veteran actor Robert De Niro says he would like to see US President Donald Trump get hit in the face with a "bag of sh*t".

He made the comment to filmmaker Michael Moore on his podcast, reports foxnews.com.

"It would kind of feel good to punch him -- not hurt him -- but just punch him in the face," Moore told De Niro.

To this, De Niro said: "I'd like to see a bag of sh*t right in his face. Hit him right in his face like that and let the picture go all over the world."

The actor added that the Democratic nominee has to "confront him and put him in his place because the people have to see that, to see him be humiliated".

De Niro told Moore that he would like to see Trump in prison, adding that there will be "no redemption" for the president saying "There are consequences for misbehaviour".

De Niro is vocally anti-Trump, and said "F--k Trump!" during the 2018 Tony Awards.

The Oscar-winning actor said that he doesn't "want to make people angry", and that people have to "understand we're in a bad situation".

De Niro also revealed that he supports former Vice President Joe Biden for president.