A warning that economic pressures are leading some shipowners to stretch maintenance to the longest possible intervals has been issued by the big Allianz insurance group.

It is critical that the financial state of the industry does not result in a "put it off until later" mentality developing, Allianz declares in its annual review of shipping safety.

Allianz, the world's largest insurance group, also cautions that laid-up vessels returning to trade could pose problems for the future.

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