Cairo - Egyptian police arrested five suspects in connection with a bomb attack on a popular tourist destination in Cairo that killed one person and injured 21 others, the Egyptian Ministry of Interior announced on Monday.

According to a security official who spoke to Deutsche Presse-Agentur dpa on condition of anonymity because he was not authorized to speak to the media, three of the suspects, two women and one man, were then released on Monday morning. Two suspects remain in custody.

The individuals had been held in connection with the bomb attack that killed a French schoolgirl and injured 21 people near Cairo's landmark Hussein Mosque and the Khan al-Khalili bazaar in the medieval quarter of Cairo on Sunday night.

Thirteen French citizens, four Egyptians, including a police officer and a child, three Saudis, and one German were injured in the attack, the Interior Ministry said on Monday.

The German citizen left the country on Monday after being treated for light wounds, the Interior Ministry said.

A source at Cairo airport, also speaking on condition of anonymity because he was not authorized to speak to the media, said that a group of roughly 55 French schoolchildren, including two who had been wounded in Sunday's blast, left the country on Monday.

He added that a plane had arrived from France late on Sunday night bearing French doctors sent to help their Egyptian colleagues treat the wounded.

Egyptian security forces crushed violent Islamist groups that carried out a series of deadly attacks in the 1990s. But beginning in 2004, a series of attacks targeting popular tourist destinations have killed 126 people, including Sunday night's attack and an April 2005 bombing in the same neighborhood that killed three tourists. (dpa)