(VOI) - An Iraqi army force arrested one Thursday one of the individuals involved in blowing up the house of the family of Lawmaker Methal a-Ulusi in western Baghdad, the official spokesman for the Baghdad's operations command said. "A force from the 54th brigade arrested one of the involved in blowing up the house of MP Methal al-Ulusi in early July in al-Jameaa neighborhood in western Baghdad," General Qassem Atta told Aswat al-Iraq - Voices of Iraq - (VOI). "The operation was based on a tip-off," he added. The general gave no more further details.