Police at the scene of the bus bombing in Bat Yam
Police at the scene of the bus bombing in Bat Yam. Photo by Tomer Appelbaum
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Tomer Appelbaum
Police at the scene of the bus bombing in Bat Yam. Photo by Tomer Appelbaum
AP
People react to an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Photo by AP

The bomb that exploded last month on an evacuated public bus in central Israel closely resembled the type used in the Boston Marathon attack.

The explosive in Bat Yam was enclosed in a pressure cooker and was activated by a cell phone, according to the Shin Bet security service.

Some 14 people have been arrested in the foiled Bat Yam attack, the Shin Bet announced after a gag order on the arrests was lifted on January 2. Among them are four members of the terrorist group Islamic Jihad from Bethlehem and a Bedouin Israeli.

The bomb, which was placed in a black backpack with wires sticking out, detonated on December 22. The passengers were evacuated from the bus before the bomb was detonated after alerting the driver to a suspicious package left on the vehicle, which was traveling from Bnei Brak to Bat Yam.

The pressure-cooker bomb included more than four pounds of explosives and was surrounded by bails and screws.

At the Boston Marathon in April, three people were killed and more than 250 were injured by a bomb allegedly made by brothers Dzhokhar and Tamerlan Tsarnaev, possibly using an Al-Qaida manual online.