Jerusalem (CNN) -- Two barrels filled with explosives washed up on beaches in Israel on Monday, according to Israeli authorities.





Authorities disposed of both without injury.





Islamic Jihad, the Fatah Al Aqsa Martyrs Brigade and the Nasser Salah al-Din Brigades issued a leaflet in Gaza claiming responsibility for sending three explosive devices to Ashkelon and Ashdod.





A large barrel filled with explosives was found on a beach in the Ashkelon area Monday morning. The beach was closed.





Policemen and bomb disposal experts neutralized the explosives, according to police spokesman Miki Rosenfeld.





A second barrel filled with explosives was discovered later in the day on the shore of the city of Ashdod.





Authorities conducted a controlled explosion on the second barrel. Police were combing the beaches, and nearby areas were closed to the public. Authorities have not discussed a third device.





The Israel Defense Forces, in a statement Monday, said several Palestinian groups had claimed responsibility January 29 for a maritime terrorist attack after the detonation of two sea-born explosive devices about two kilometers (1.24 miles) off the coast of Gaza.





Hamas, the movement controlling Gaza, has been vowing retaliation since one of the founding members of its military wing, Mahmoud al-Mabhouh, died last week in Dubai.





Al-Mabhouh's brother, Fayek al-Mabhouh, said that preliminary results of Hamas' investigation of the death showed his brother was killed by electrocution and strangulation with a piece of cloth.





Hamas officials accused Israel of assassinating Mahmoud al-Mabhouh. Israeli officials have not responded to those charges.
which group claim responsibility for barrels in Ashkelon, Ashdod? How many barrels of explosives were disposed? what do Authorities dispose of ? Do police close the beach, nearby areas to the public ? Who claimed responsibility for the barrels? Who closed the beach and nearby areas?
Islamic Jihad, the Fatah Al Aqsa Martyrs Brigade and the Nasser Salah al-Din Brigades Two Two barrels filled with explosives was closed. Islamic Jihad, the Fatah Al Aqsa Martyrs Brigade and the Nasser Salah al-Din Brigades Police
question: which group claim responsibility for barrels in Ashkelon, Ashdod?, answer: Islamic Jihad, the Fatah Al Aqsa Martyrs Brigade and the Nasser Salah al-Din Brigades | question: How many barrels of explosives were disposed?, answer: Two | question: what do Authorities dispose of ?, answer: Two barrels filled with explosives | question: Do police close the beach, nearby areas to the public ?, answer: was closed. | question: Who claimed responsibility for the barrels?, answer: Islamic Jihad, the Fatah Al Aqsa Martyrs Brigade and the Nasser Salah al-Din Brigades | question: Who closed the beach and nearby areas?, answer: Police