On Thursday, the activist was arrested over his posts on Twitter concerning the use of torture in Bahrain's Jaw Prison.
"Appeal sentence due 15/4 for @NABEELRAJAB changed to tomorrow not a good sign usually," the Bahrain Center for Human Rights (BCHR) said on its Twitter account.
Appeal sentence due 15/4 for @NABEELRAJAB changed to tomorrow not a good sign usually. Taken to prosecution today on new charges #Bahrain— Bahrain Human Rights (@BahrainRights) 4 апреля 2015
According to the country's interior minister, Rajab had been taken into custody for posting information that could disrupt civil peace and insult a statutory body.
The Bahrain Human Rights Society, the European Centre for Democracy and Human Rights, Human Rights Watch, as well as the BCHR itself urged for the release of Rajab.
Over the recent weeks, Rajab has posted multiple tweets related to human rights abuses at Jaw Prison. He has been repeatedly detained for speaking out on social media.