Forces loyal to the Saudi-backed Manama regime have attacked dozens of homes in the country over the past three days in their continued crackdown on pro-democracy protesters.
Bahrainâ€™s main opposition group al-Wefaq says the attacks come after a wave of countrywide protests against the Al Khalifa rule.
The group says Manama troops used poisonous gases in at least 34 areas to disperse anti-government protesters.
Reports say regime forces detained nine citizens including two adolescents during the latest raid which mostly took place overnight.
At least five people have also been injured in the regime forceâ€™s violence in different areas.
Bahrain is in the middle of a popular uprising that erupted in mid-February 2011 in the small Persian Gulf island nation, with demonstrators calling for democratic reforms.
The Manama regime promptly launched a brutal crackdown on the peaceful protests and called in Saudi-led Arab forces from neighboring states to help them silent the protests.
Dozens of people have been killed in the crackdown, and the security forces have arrested hundreds, including doctors and nurses.
A report published by the Bahrain Independent Commission of Inquiry in November 2011 found that the Al Khalifa regime had used excessive force in the crackdown and accused Manama of torturing political activists, politicians, and protesters.
Bahrainis say they will continue holding demonstrations until their demand for the establishment of a democratically elected government is met.