Spiraling pro-Palestinian protests that are rocking universities across the United States spread to more campuses Wednesday, triggering suggestions from House Speaker Mike Johnson that the National Guard could be brought in. More than 20 people have been detained.

Pro-Palestinian campus protests in US universities lead to arrests and demands for divestment from Israel, with Columbia University at the forefront.

Pro-Palestinian protests spread to more college campuses in the United States on Thursday as authorities appeared to be running out of patience and police began to push back forcefully.

Students in Paris inspired by Gaza solidarity encampments at campuses in the United States blocked access to a campus building at a prestigious French university Friday, prompting administrators to move all classes online.

Arrests were made at both schools. The LAPD said it would continue patrolling USC's campus into Thursday, while Texas Gov. Greg Abbott said the protestors at UT-Austin belong in jail.

Large-scale demonstrations take place in US universities and on European streets amid arrests and clashes with police.