Story highlights Suicide bombers attack Peshawar and Mardan Friday morning

13 dead in Mardan, one killed on outskirts of Peshawar

Peshawar, Pakistan (CNN) At least 14 people were killed Friday in the latest suicide attacks by a Pakistani Taliban splinter group targeting Christians and lawyers in the country, authorities say.

Both attacks were claimed by Jamaat-ul-Ahrar, a splinter group of Pakistan's Tehreek-i Taliban (TTP) -- also known as the Pakistani Taliban -- which has killed scores of people in previous attacks targeting both groups in the country this year.

In the city of Mardan, in the northern province of Khyber Pakhtunkhwa, at least 13 people were killed and another 53 injured in an attack at the city's district courts Friday, District Police Officer Faisal Shehzad told CNN.

The attacker threw a hand grenade at the court gates, then blew blew himself up after security prevented him from entering, Senior Police Superintendent Shafiullah Khan said.

Four of those killed were lawyers, according to Amir Hussain, the president of the Mardan Bar Association.

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