CAIRO, Jan 24 (Aswat Masriya) - A police officer was injured in clashes that erupted between police forces and Muslim Brotherhood supporters in Alexandria on Friday.

Security forces tear-gassed supporters of deposed President Mohamed Mursi to disperse them.

Major Yehia Riad suffered a shotgun pellet injury during the clashes, said Major General Nasser al-Abd, head of Alexandria's investigations unit.

Twelve people were arrested in the clashes.

On the other hand, hundreds of the Armed Forces' supporters gathered at al-Qaed Ibrahim Mosque amid tight security.

An Azhar University student in Alexandria was shot dead on Thursday as police forces clashed with pro-Brotherhood students during demonstrations.

The clashes come one day before Egyptians commemorate the anniversary January 25 Revolution, which witnessed the ouster of former President Hosni Mubarak.