Officials in Canada say the death toll in the devastating oil train derailment has reached 13.

Eight more bodies have been found in the wreckage now that investigators have better access to the zone closest to the blast, officials said Monday. About 40 people are still missing.

All but one of the train's 73 tanker cars were carrying oil when they came loose early Saturday, sped downhill nearly seven miles (11 kilometers) into the town of Lac-Megantic, near the Maine border, and derailed, with at least five of the cars exploding.

The blasts destroyed about 30 buildings, including a public library and a popular bar that was filled with revelers.

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Associated Press writer Rob Gillies and Charmaine Noronha contributed from Toronto. James MacPherson contributed from Bismarck, North Dakota.