SHARQIA, Oct 29 (Aswat Masriya) - Two bombs exploded on Wednesday morning in a sewage project under construction in Sharqia, north of Cairo, which destroyed two pipes. No causalities were reported, a security source said.

"Unidentified assailants placed the makeshift explosive devices underneath the sewage pipes of the project," the source added. 

The incident was reported to the security director of Sharqia. 

Security forces combed the surrounding area for any foreign objects or other bombs but nothing was found. 

Egypt has seen several explosions during the past year.