by Chris Bodenner
An escalating trend:
1940 GMT: Al Jazeera reports the torching of the State Security and Police Bureau buildings in Damanhour, 160 kilometres/99 miles northwest of Cairo.
1903 GMT: Al Arabiya reports 8 killed and 17 injured in an attempt to storm the Police Bureau in Beni Suef, 115 kilometres/72 miles south of Cairo.
Update: AFP says 12 dead in Beni Suef.
Reuters reports that police shot dead 17 people trying to attack two police stations in Beni Suef governorate, according to witnesses and medical sources. Twelve of those shot were attempting to attack a police station in Biba while five others were trying to attack another in Nasser city. Dozens of others were injured in the exchanges.