Free Gaza Movement says its boat was taking refugees to Gaza . Israel says it warned boat not to ignore naval warnings . Free Gaza said the Spirit of Humanity voyage is the eighth such trip the group has launched . Cynthia Anderson , Nobel laureate Mairead Maguire among boat 's crew . Military medical aid aboard boat will be delivered ` ` subject to authorization ''
Free Gaza Movement says its boat was taking refugees to Gaza . Israel says it warned boat not to ignore naval warnings . Cynthia Anderson , Nobel laureate Mairead Maguire among boat 's crew . Military medical aid aboard boat will be delivered ` ` subject to authorization ''