US police have made several arrests at George Washington University (GWU) after officers moved to clear a pro-Palestinian encampment from the campus.

A spokesperson for Washington DC Metro Police told the BBC that "a number of arrests" were made for assaults on a police officer and unlawful entry.

University students have been inside an encampment since 25 April.

Since mid-April pro-Palestinian demonstrations have broken out at nearly 140 US colleges.

According to a BBC tally, there have been pro-Palestine protests at 45 states and Washington DC since the demonstrations started at Columbia University in New York on 17 April.

They are demanding that their schools, many with massive endowments, financially divest from Israel.

Many also want their universities to end academic relationships with Israeli institutions.