A brother of a London bombing suspect jailed in Rome was arrested in northern Italy on Sunday as investigators pressed their probe of possible accomplices to the July 21 attackers, and a top Rome security official warned that the terror risk for the capital still remained high, AP reported. Fati Issac was arrested in the northern industrial city of Brescia, said national police headquarters in Rome. Police said he is a brother of Osman Hussain, a Briton accused of trying to bomb a London subway on July 21. Hussain was arrested in Rome on Friday after eluding a dragnet in England. Issac was accused of destroying or hiding documents sought by investigators, but the charge doesn't involve any terrorism accusation, the Italian news agency ANSA said. Anti-terrorism investigators interrogated him for hours, ANSA and SKY TG24 said, reporting from Brescia. Investigators are checking out possible accomplices to try to learn if Hussain, also known as Hamdi Issac, was involved in any terror cell in Italy or involved in any plot to launch an attack against Italy.