Authorities in southern Bulgarian Black Sea city of Burgas have launched an investigation on a yet unspecified substance that has appeared a number of beaches in the region.

The white granular chemical was thrown out in what are reported to be "vast quantities" on beaches near Kiten, Primorsko, Lozenets, Tsarevo and Sinemorets.

Citizens who reported the substance said it is greasy to the touch and emits an oil-like smell.

At some locations the chemical appeared on Monday, while at others it was washed ashore on Wednesday.

The Bulgarian news website OffNews.bg writes that the substance could have been used for the neutralization of an undisclosed oil spill.

The environmental inspection unit (RIOKOZ) at Burgas said that the chemical is being investigated by its officers, together with officers from the regional health inspection, as well as officers from maritime authorities.

We need your support so Novinite.com can keep delivering news and information about Bulgaria! Thank you!