A court in Bahrain has sentenced six anti-regime protesters to death and revoked their citizenship as the ruling Al Khalifah regime presses ahead with its heavy-handed clampdown on political dissidents and pro-democracy campaigners in the Persian Gulf kingdom.

On Monday, the Military High Court found the defendants guilty of “forming a terror cell, attempting to assassinate Commander-in-Chief Field Marshal Sheikh Khalifa bin Ahmed Al Khalifah and committing other acts of terror.”

Bahrain's state-run news agency reported that one of those sentenced to death, identified as Mubarak Adel Mubarak Mahanna, was a serving soldier before his arrest.

The court sentenced seven other defendants to seven-year jail terms and deprived them too of their citizenship. Five men were acquitted.

Only 10 of the defendants are in custody, while the other eight are on the run – either inside Bahrain or in neighboring countries.

Thousands of anti-regime protesters have held demonstrations in Bahrain on an almost daily basis ever since a popular uprising began in the country in mid-February 2011.

They are demanding that the Al Khalifah dynasty relinquish power and allow a just system representing all Bahrainis to be established.

Manama has gone to great lengths to clamp down on any sign of dissent. On March 14, 2011, troops from Saudi Arabia and the United Arab Emirates were deployed to assist Bahrain in its crackdown.

Scores of people have lost their lives and hundreds of others sustained injuries or got arrested as a result of the Al Khalifah regime’s crackdown.

On March 5, Bahrain’s parliament approved the trial of civilians at military tribunals in a measure blasted by human rights campaigners as being tantamount to imposition of an undeclared martial law countrywide.   

Bahraini monarch King Hamad bin Isa Al Khalifah ratified the constitutional amendment on April 3.