The US justice department has filed its first criminal charges in the investigation into BP's 2010 Deepwater Horizon oil rig explosion in the Gulf of Mexico.
Kurt Mix, a former BP engineer, has been charged with deliberately destroying a string of text messages about the company's failed attempts to stem the flow of oil. He faces 20 years in jail if found guilty.
When the rig exploded just over two years ago it claimed the lives of 11 workers and led to what US President Barack Obama called the country's worst environmental disaster.
Al Jazeera’s Andy Gallacher reports from Miami.