BARRINGTON, R.I. (WPRI) ─ Environmental officials are investigating after thousands of fish recently turned up dead on a Barrington beach.

Mike Healey, a spokesperson for the Rhode Island Department of Environmental Management (DEM), said the Division of Marine Fisheries received reports Friday of two fish kills, one in Barrington and another across the bay in Warwick.

Healey said while Marine Fisheries has not inspected the fish kill in Warwick just yet, they did find roughly 5,000 dead fish along the 50-yard stretch of Bullocks and Allen’s Coves.

The cause of the fish kill remains under investigation, however, Healey said the DEM strongly believes the die-offs were caused by low levels of dissolved oxygen in the bay due to the recent heat wave.