Mohammed Abdulmohsen Al-Mousawi is a Bahraini former prisoner of conscience and human rights defender known for his peaceful expression of opinions on social media in a context of systematic repression against dissent in Bahrain. Al-Mousawi had previously been detained for his activism and was released in 2024 after serving 12 years in prison. On 19 March 2026, he was arbitrarily arrested by Bahraini security forces at a checkpoint in the Samaheej area of Muharraq Governorate while on his way to a religious gathering, alongside his cousins Ahmed Al-Mousawi and Mustafa Al-Mousawi. Following his arrest, Mohammed Abdulmohsen Al-Mousawi was taken to an unknown location and held incommunicado without access to legal counsel or contact with his family. According to informed sources, his arrest was linked to the peaceful expression of personal opinions on social media, despite official claims accusing detainees of espionage for foreign entities. On 27 March 2026, the family of Mohammed Abdulmohsen Al-Mousawi received a phone call from the Ministry of Interior asking whether they had received his body, without any prior notification of his death or information regarding his detention. Upon receiving his body, his family reported visible signs of severe torture, raising serious concerns about custodial abuse and extrajudicial killing. Mohammed Abdulmohsen Al-Mousawi’s death occurred amid a broader crackdown in Bahrain, where authorities have detained over 200 individuals in March 2026 in secret locations, holding them incommunicado for expressing views on social media or participating in peaceful demonstrations, particularly in relation to the ongoing regional conflict. On 16 March 2026, the Ministry of Interior publicly warned against sharing content deemed harmful to national security, reflecting an escalation in restrictions on freedom of expression. Mohammed Abdulmohsen Al-Mousawi’s funeral was widely attended, prompting fears of further reprisals against participants.