Egypt has arrested 26 suspects who the prosecutor said belonged to a cell of militant group Islamic Jihad and were plotting "terrorist acts" against tourists and state installations, the official news agency MENA reported on Sunday.
"The public prosecutor ordered them placed in precautionary detention for 15 days pending investigations," MENA wrote, adding that the prosecutor had sent the arms and explosives for forensic investigations, Reuters reported.
Egyptian Islamic Jihad (EIJ) emerged in the 1970s and carried out the 1981 assassination of President Anwar Sadat. Security analysts say it has been largely absorbed into al Qaeda, in which former EIJ leader Ayman al-Zawahri is deputy to Osama bin Laden.
Egypt is concerned about the possibility that al Qaeda-inspired militants could infiltrate the country after being forced out of the neighboring Palestinian enclave of Gaza by Islamist group Hamas, analysts told a conference last week.