An Al-Qaeda-inspired group based in Egypt's Sinai Wednesday claimed responsibility for a suicide car bombing of a police headquarters north of Cairo that killed 15 people, the deadliest such attack since president Mohamed Morsi's overthrow. It said the attack was carried out by a suicide bomber identified as "Abu Maryam". The group warned soldiers and policemen to abandon their posts "to preserve their religion and lives". It said it carried out Tuesday's attack in response to the "apostate regime's war on Islamic sharia, it's shedding of Muslim blood and violation of our women's and sisters' honour." Attacks by the group have intensified since the military ousted Islamist president Morsi on July 3. Source: AFP