Louisiana fish deaths raise oil spill questions

From The BBC:

The dead fish found at Bayou Chaland in Plaquemines Parish, Louisiana, include pogies, redfish, drum, crabs, shrimp and freshwater eel, officials say

Officials in Louisiana's Plaquemines Parish have called for an investigation after finding hundreds of thousands of dead fish near the Mississippi River.

The Plaquemines Parish Inland Waterways Strike Force claims oil was spotted in pictures of the dead fish.

The group is now attempting to find if the BP oil spill was connected to the incident, known as a "fish kill".

The cause of the fish kill has not been determined, but such events typically happen due to depleted oxygen levels.