Five suspected terrorist were arrested over their involvement in the deadly attacks on two churches in Pakistan earlier this year which claimed 15 lives, officials said on Saturday.A total of 15 people were killed and over 70 injured on March 15, when two Taliban suicide bombers attacked two churches in Lahore's Christian-dominated area of Youhanabad, Dawn online reported.Tehreek-e-Taliban Pakistan’s (TTP) Jamaat-ul-Ahrar faction claimed responsibility for the attack. Police said weapons, explosive material and detonators were also recovered from their possession.The arrested suspects had links with a banned organisation, police added.