Saudi-backed Bahraini forces have attacked a number of schools across the Persian Gulf kingdom, abducting several students, witnesses say.

According to Press TV, Bahraini forces took away two students from a school in the capital Manama and eight others from a school in the northeastern town of Busaiteen on Monday.
Security forces also snatched a wounded anti-government protester from Salmaniyah hospital in the capital.
It was not immediately clear why the students were taken away.
Meanwhile, Bahraini forces attacked house of Hussein Ibrahim Marzooq and arrested him. Eight police cars and more than 20 Bahrain policemen came to arrest him from his house in bani jamra, ABNA reported.
After breaking the doors, the police forces raided and insulted the man. They stole some of her belongings including his computer.
Since the beginning of anti-regime protest rallies in Bahrain in mid-February, authorities have brutally suppressed those voicing support for the opposition.
Last month, Bahraini authorities expelled 33 students from Shahrakan primary school after they chanted anti-government slogans in a school bus.
Bahraini security forces have repeatedly attacked medical centers across the country, arresting wounded anti-government protesters and medical staff.
Physicians for Human Rights says doctors and nurses have been detained, tortured or disappeared because they have ""evidence of atrocities committed by the authorities, security forces and riot police"" in the crackdown on anti-government protesters.
Activists say scores of people have been killed in the protests. Many journalists, bloggers, doctors, lawyers and opposition activists have been arrested.
Last week, a military court in Bahrain sentenced four anti-government protesters to death and three others to life in prison for their alleged involvement in the killing of two police officers.
Bahrain's Center for Human Rights says the charges brought against the four protesters are politically motivated and rights activists have questioned the trial's legality