CAIRO: A homemade bomb exploded near a traffic police post on a bridge over the Nile River in central Cairo early Tuesday, wounding two policemen and a civilian, security officials said.

Police sealed off the blast site on the Al-Galaa bridge in the Dokki neighborhood, and a bomb disposal team combed the area to make sure there were no other explosive devices, the officials said on condition of anonymity because they were not authorized to brief the media.

Egypt’s MENA state news agency said two policemen were wounded in the explosion, but made no mention of a civilian casualty. Such discrepancies are common in the aftermath of similar attacks.