Campaigners from the Freedom Flotilla Coalition had attempted to breach an Israeli naval blockade of the Palestinian territory of Gaza, but were intercepted late Saturday.
The legal rights center Adalah told AFP its lawyers were in Ashdod and had demanded to speak to the 21-strong international crew, which includes two French parliamentarians and two Al Jazeera journalists.
“After 12 hours at sea, following the illegal interception of the Handala, Israeli authorities confirmed the vessel’s arrival at Ashdod port”, said the group, set up to campaign for the rights of Israel’s Arab population.
“Despite repeated demands, Israeli authorities have refused to allow Adalah’s lawyers access to the detained activists to provide legal consultation”, it continued.
“Adalah reiterates that the activists aboard the Handala were part of a peaceful civilian mission to break through Israel’s illegal blockade on Gaza. The vessel was intercepted in international waters and their detention constitutes a clear violation of international law”.
Earlier, the Israeli foreign ministry said the navy stopped the Handala to prevent it from entering the coastal waters off the territory of Gaza.
The ship had been on course to try to break an Israeli naval blockade of Gaza and bring a small quantity of humanitarian aid to the territory’s Palestinian residents.
A previous boat sent by Freedom Flotilla, the Madleen, was also intercepted by the Israeli military in international waters on June 9 and towed to Ashdod.