Bangladesh says worsening floods have stranded at least 600-thousand people and forced another 14-thousand to seek shelter in relief centres.

The Disaster Management Minister says the army has been called in to help rescue efforts in the worst hit districts.

He says so far 23 districts have been affected by flooding.

The low-lying country suffers annual floods, with at least a fifth of the country submerged each year.

In July and August last year, flooding killed more than one-thousand people.

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