Seven suspected members of the al-Qaida-linked Jemaah Islamiyah were flown to the Indonesian capital Tuesday for interrogation by national police hoping to crack the shadowy terror network. Investigators said the arrests of the men last week in Central and East Java provinces — together with the discovery of a massive cache of weapons, explosives and detonators — may have helped thwart as many as 20 planned attacks. "We're bringing them to Jakarta so we can interrogate them further," National Police Chief Gen. Sutanto told reporters as the suspects boarded an airplane in the Central Java town of Yogyakarta. "We want to learn everything we can about this network."The men are believed to be members of Jemaah Islamiyah, which is seeking to create an Islamic state across Southeast Asia. The network has been blamed for a string of deadly bombings in Indonesia — the world's most populous Muslim country — in the last five years. Four of the suspects were captured during a March 20 raid on a busy street near the city of Yogyakarta, authorities said, and those suspects eventually tipped off police to the whereabouts of the other three in East Java. An eighth suspect was fatally shot by police. Among the evidence seized in the two raids were 20 active bombs, 800 kilograms (1,700 pounds) of explosives, nearly 20 detonators, three M-16 automatic rifles, six pistols, and 1,500 bullets, police said.