Officials at a Palestinian university in the West Bank say undercover Israeli forces have raided the campus and arrested three students.

Lubna Abdelhadi, a spokeswoman for the Bir Zeit University, says the armed commandos, disguised as locals, entered the campus early on Tuesday and grabbed the students, believed to be Hamas activists, while they were sleeping.

The students were apparently hiding on campus to try and avoid arrest. The raid happened as Israel and Gaza's Hamas militants traded fire overnight after a rocket attack from Gaza struck a home in central Israel early on Monday.

Israeli forces had previously raided the university in 2017 and ransacked the student council, confiscating materials used by political groups.

The Israeli military said it arrested nine Palestinian suspects in routine overnight West Bank raids, but would not specify further.