Four ships sank and six ran aground on November 11 last year during a storm in the strait between the Black and Azov seas that damaged two oil tankers, causing a spill of around 2,000 metric tons of fuel oil.
"There are no oil stains on the coast or the sea surface. No deaths of birds, fish and other animals have been recorded," the emergencies ministry said.
On Tuesday and Wednesday a working group comprising experts from the emergencies ministry, the ecology ministry and other authorities found no signs of pollution while examining waters and coastline of the city of Kerch, the Kerch Strait and the Tuzla Promontory.
In early June, a Crimean environmental official said Tuzla Island had yet to be cleared of oil, saying that the island's shoreline resembles "a sandwich of sand and oil."
