A dead baby seal and a porpoise washed up alongside a chemical container on the beach in Skegness.
Four coastguard crews attended the scene on the beach close to Butlins at around 1pm on Sunday, September 22.
It’s unclear what was in the 25-litre container found near the two carcasses or if the deaths were related, but the crews removed it from the area.
A spokesperson for Mablethorpe Coastguard said: “On route to the incident we were informed that a chemical container had also washed up not far from the porpoise.
“We identified a deceased porpoise and baby seal before sending photos and information to the operation room.”