Bomb in upscale district of Cairo wounds laborer

A homemade bomb placed near a women's college has wounded one person in an upscale district of eastern Cairo, security officials say.

Police say the Saturday morning blast, which was also near a tram line, wounded a laborer. Security officials say they defused a second explosive device nearby and were searching the area for others.

Security officials also said late Friday that 17 police officers were injured in clashes between Muslim Brotherhood supporters and police earlier that day. Three protesters had been reported killed and 28 injured.

Violence has escalated in Egypt since the ouster of Islamist President Mohammed Morsi last July. Dozens of police have been killed as well as hundreds of supporters of the toppled president.

Officials spoke anonymously because they are not authorized to speak to journalists.