CAIRO — Egypt’s chief prosecutor charged 200 suspected militants Saturday with carrying out more than 50 terrorist attacks, killing 40 policemen and 15 civilians and conspiring with the Palestinian militant group Hamas, in the first mass trial of a Jihadi group since the country’s recent turmoil.

The defendants, 98 of whom remain on the run, are all suspected members of the al-Qaida-inspired Ansar Beit al-Maqdis group, or Champions of Jerusalem, which has claimed responsibility for the bloodiest attacks since a wave of violence picked up following the mili- tary overthrow of Islamist President Mohammed Morsi last summer.

The prosecutor’s statement refers to the group as “the most dangerous terrorist group,” and accuses the defendants of receiving military training in the Palestinian Gaza Strip under the patronage of Hamas. It also says they traveled to Syria where they took part in fighting against government forces before returning to Egypt.

Washington designated the group as a terrorist organization in April, accusing it of carrying out attacks in Israel, against security forces and tourists in Egypt.