Police say Maldives Vice President Ahmed Adeeb has been arrested on suspicion of links to a blast on the presidential boat last month.
Police spokesman Ismail Ali said Adeeb was arrested Saturday at the airport when he returned from an official visit to China.
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The September 28 explosion took place aboard the boat when President Yameen Abdul Gayoom and his wife were returning to the capital from the airport after a hajj pilgrimage to Saudi Arabia. The airport of this archipelago state is on a separate island.
Gayoom escaped unhurt but his wife, an aide and a bodyguard were injured.