BBC News with Marion Marshall

Italy says it will declare a state of emergency over the cruise liner lying capsized off the west coast and provide funding to help avert any environmental disaster. The stricken vessel was carrying more than 2,000 tonnes of diesel. Six people are known to have died in the accident and 16 are still missing. Bethany Bell is at the accident site.

Concern is growing about the fuel on the wreck of the Costa Concordia. The ship's tanks were full, and there are fears for the environment.

The area where the ship capsized is a maritime park known for its pristinewaters. Italy's environment minister said work to avoid a spill is underway, but he said the risk for the island is high and time isrunning out. Meanwhile, the owners of the cruise ship have accused the captain Francesco Schettino of deliberately going off course. The captain, who's been detained for questioning, has denied any wrongdoing.