An Israeli court rejects an appeal by two foreign activists detained in connection with a Gaza-bound aid flotilla, according to multiple reports. The men—Saif Abu Keshek, a Spanish national of Palestinian origin, and Thiago Avila, a Brazilian—were seized by Israeli forces after the flotilla was intercepted in international waters off the coast of Greece. Israeli authorities bring the two activists to Israel for questioning, while other participants are taken to the Greek island of Crete and released.

The rejection on Wednesday means an earlier decision extending the activists’ detention remains in place. Lawyers for the pair say an Israeli court had previously extended their detention until Sunday to allow more time for police interrogations. The activists appear in court with their feet shackled, and at least one report says they are on a hunger strike.

Rights groups and representatives of Spain, Brazil, and the United Nations call for the activists’ swift release, with the UN also urging an investigation into allegations of mistreatment. Israel’s legal position, as described by their lawyers, includes accusations tied to the men’s alleged involvement with the flotilla.