"Rebel rousers should be imprisoned or permanently sent back to their country of origin", he writes on his own platform Truth Social.
American students will be expelled or imprisoned, depending on the crime.
"NO MASKS", Trump concludes the post.
The White House said on Monday that they have launched an investigation into federal grants and contracts with Columbia University, following allegations that the institution in New York did not act against anti-Semitism during pro-Palestinian protests last year.
During last spring's campus protests against Israel's warfare in Gaza, thousands of students were arrested at several different universities in the USA. The protests also spread to other countries.
