You're reading: Bahrain opposition: 4th supporter dies in custody

DUBAI, United Arab Emirates (AP) — Bahrain's Shiite opposition party says another one of its supporters, the fourth so far, has died in police custody.

Al Wefaq, Bahrain’s main opposition bloc in the Sunni-ruled Gulf country, says Haji Karim Fakhrawi died in "mysterious circumstances."

The statement Wednesday did not say when he died.

Bahrain’s official news agency said Fakhrawi died of kidney failure.

The report quotes medical examiner from Bahrain Defense Forces Hospital on the cause of death.

Human rights activists and Fakhrawi’s relatives say marks and bruises on his body suggest he died of torture.

At least 30 people have been killed since anti-government protests by Bahrain’s Shiite majority began in February.

Hundreds have been detained in the crackdown on the rebellion.