Blasts across Cairo and South Sinai have killed at least four people and injured 12 others.
At least four have been killed and 12 others injured following a string of bomb attacks in Heliopolis and South Sinai.
One police officer died and thre others injured in a blast at a police station in the upmarket Cairo district earlier today.
The attack comes just hours after a suicide bomber killed himself and a police officer while wounding five others at a security checkpoint at El-Tur, between Cairo and Sharm El-Sheikh
Meanwhile a second suicide bomber, in the same area, wounded at least four tourism workers in a blast nearby.
Security forces have heightened security in the South Sinai amid fears of further attacks.