The Israel-based Adalah legal centre says the jailed aid activists are citizens of Norway, Morocco, and Spain and promised to continue “to demand their immediate release”.

“Six participants who were aboard the Global Sumud Flotilla, unlawfully intercepted and detained on their way to Gaza amid the ongoing genocide, remain in Israeli detention,” a statement said.

Lawyers submitted requests to Israeli authorities to visit the detainees on Wednesday if they remain in custody. Israeli media earlier reported that authorities extended the detention of Spanish activist Reyes Rigo Cervilla for one week.

Last week, Israeli naval forces seized a flotilla of more than 40 boats heading to Gaza to challenge Israel’s illegal blockade of the enclave, detaining more than 470 activists from more than 50 countries.