Explosion in Cairo

CAIRO, Egypt (CNN) -- An explosion in one of the Egyptian capital's busy tourist districts Sunday left a French woman dead and wounded nine other Europeans, the country's Health Ministry reported.

The wounded include eight French nationals, one of whom was in critical condition Sunday evening, and one German, ministry officials said.

A man and a woman were arrested after the incident, security officials said. The nationalities of the arrestees were not disclosed.

Earlier reports conflicted, with an Interior Ministry press officer at one point saying as many as 19 were wounded, while another official said four were dead.

The explosion occurred during the height of the evening rush at 6:30 p.m. (11:30 a.m. ET) in an area of coffee shops located outside a mosque in Cairo. It occurred near the Al Hussein Mosque, one of Cairo's biggest, Interior Ministry press officer Hany Abdelatif said.

An unexploded bomb was found near the mosque, which is located near an entrance to the Khan el-Khalili bazaar, a huge market that is also a tourist attraction, he said.