Israel faced international condemnation and protests on Thursday after its forces intercepted about 40 boats carrying aid and more than 400 foreign activists, including Swedish campaigner Greta Thunberg, to Gaza.
The Global Sumud Flotilla GSF, the organiser of the voyage, said an estimated 443 volunteers had been detained, some of them transferred to one large cargo vessel before being taken ashore.
Turkish president Tayyip Erdogan on Thursday criticised Israeli aggression, saying it showed Israel's government has no intention of letting hopes for peace grow.