Irish President Catherine Connolly said she was 'very proud' of her sister, Margaret Connolly, after she was arrested aboard the Global Sumud Flotilla bound for Gaza. The arrest comes amid already strained relations between Ireland and Israel.

Margaret Connolly, a family doctor, was among at least six Irish citizens detained during the operation, according to a spokeswoman for the pro-Palestinian aid group organizing the flotilla. The incident is expected to further heighten diplomatic tensions between the two countries.