At least 10 people were killed and 41 others injured on Friday when a suicide bomber blew himself up near the entrance of a district and sessions court in Pakistan's Khyber Pakhtunkhwa province.The Jamaatul Ahrar (JA) terror group claimed responsibility for the attack in Mardan district, security sources told DawnNews.The suicide blast comes just hours after gunmen attacked Peshawar's Christian Colony, which was also claimed by JA. One civilian and four suicide attackers were killed in the attack.Police said the attacker detonated a hand grenade before exploding his suicide vest.Lawyers are usually targetted in terror atatcks in Pakistan.In August, 73 people, most of them lawyers, were killed after a suicide bomber struck the emergency ward of Quetta's Civil Hospital.