Eighteen policemen were wounded Sunday, following a blast exploded in their bus at Arish coastal route in North Sinai, Al Bawaba News reported. Eyewitnesses reported gunshot sounds heard all over Arish, whilst ambulances arrived immediately at the explosion site. Medical source affirmed that most of injuries are limited bruises and shrapnel, pointing out that condition of police soldiers is stable. Security forces stated that two blasts were planted on the roadside of the bus, but only exploded. Interior ministry called on media to investigate accuracy of the news, until it issue an official statement of the incident later.