In the middle of the Gulf of Mexico an island has gone missing… and nobody knows where it is.

Bermeja Island was clearly visible on national and international maps until the middle of the 20th century. The place is strategically important as it could give Mexico a claim to millions of dollars worth of oil deposits.

But recent searches for the island have failed to find it, fuelling rumours of conspiracy theories. But what really happened to Bermeja?

David Cuen of BBC Mundo goes in search of this lost island.

Mexico's Missing Island is part of the World Stories series. These are five individual documentaries made by BBC language service producers about the region they come from.

First broadcast 11 September 2009