A Human Rights Watch official is calling on the government of Bahrain to investigate a Monday morning teargas attack on the Bani Jamra home of prominent activist Nabeel Rajab.

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Another prominent Bahraini who was recently arrested is human rights activist Abdulhadi Al-Khawaja. Masked gunmen, according to human rights activists, stormed the home of Al-Khawaja's daughter, Zainab, where he was staying. They beat him severely and took him away, she said. 

After the arrest, Zainab Al-Khawaja launched a hunger strike to protest the assault and detention of her father and her husband. She was taken to a hospital Sunday after her health had deteriorated so much that she could not talk or move, Rajab said. However, the woman was released after refusing an intravenous tube, a human rights activist told CNN.