Anti-regime protests in Bahrain continue, despite the heavy-handed crackdown by the Western-backed monarchy.
Scores of people have been killed and many others injured or arrested in the campaign of suppression.
Since mid-February 2011, thousands of anti-government protesters have been staging regular demonstrations in the streets of Bahrain, calling for the Al Khalifa royal family to relinquish power.
The anti-regime demonstrators hold King Hamad bin Isa Al Khalifa responsible for the deaths of the protesters during the popular uprising.
Bahraini protesters have blocked roads by setting fire to tires in towns, following days of anti-regime protests across the country.
Earlier on Friday, at least 45 Bahraini demonstrators were injured near the capital, Manama, after Saudi-backed regime forces used tear gas and birdshot to break up three separate anti-government protests.
Bahraini forces also arrested 40 people, including the daughter of prominent opposition activist Abdulhadi al-Khawaja.
Bahraini activists say Zainab al-Khawaja was arrested as she tried to hold a protest sit-in at al-Badei street close to the capital.
In another incident on Thursday, Bahraini security forces attacked anti-government demonstrators staging protest rallies in several towns and villages in the Persian Gulf sheikdom.