The ship, run by Women on Waves, offers free abortions to women living in countries where the procedure is banned. The group carry out terminations in international waters for women up to ten weeks pregnant, and also offer sexual health and contraceptive advice.  
The group said the abortion hotline was receiving hundreds of calls from women looking for information and hoping to schedule a visit.
The Guatemalan army detained the boat on Friday, with four of the crew forced to remain on board. The department of immigration said the boat was in violation of Guatemalan law.
Women on Waves said it was appealing the decision in court, saying it had all the necessary papers and permits to be there, and that the ship could not be expelled before a decision had been made.
“Our crew has been facing countless human rights violations and are bravely resisting a series of absurdities to stand in …