Over a hundred rights organizations have urged Al-Khalifa regime in Bahrain to release human rights activist Nabeel Rajab.

Over a hundred rights organizations have urged Al-Khalifa regime in Bahrain to release human rights activist Nabeel Rajab.

The rights organizations demanded the “immediate and unconditional” release of Rajab, his detention as a serious blow to the freedom of speech in the Persian Gulf kingdom.

In a joint statement on Thursday, the rights groups urged the Bahraini authorities to take all necessary measures to secure the physical and psychological security of prisoners of conscience.

They also called on the United Nations, US administration, and the European governments to push Manama to immediately stop the judicial harassment of human rights defenders and drop all charges against them.

Rajab, who heads the Bahrain Center for Human Rights (BCHR) was arrested earlier this month over his anti-regime twitter remarks.

In one tweet, Rajab said the Bahrainis that join the ISIL war in Syria and Iraq are actually members of security agencies belonging to the Persian Gulf monarchy.

He was freed in May after completing a two-year jail term for organizing and participating in anti-regime protests.

Bahrain has been the scene of protests since mid-February 2011. Thousands of pro-democracy protesters have held numerous demonstrations in the streets of the country, calling for the Al Khalifa royal family to relinquish power.