(Adds quote, pressure drop in paragraphs 3-5) OSLO, Oct 8...

(Adds quote, pressure drop in paragraphs 3-5)

OSLO, Oct 8 (Reuters) - A subsea gas pipeline connecting Finland and Estonia was shut down early on Sunday following an unusual drop in pressure, Finnish gas system operator Gasgrid said in a statement.

"Based on observations, it was suspected that the offshore pipeline between Finland and Estonia was leaking," Gasgrid said in a statement.

The drop in pressure was registered just before 0200 EET (2300 GMT) by Gasgrid in Finland and Estonian gas transmission system operator Elering, the Finnish company said.

"The valves in the offshore pipeline are now closed and the leak is thus stopped. Gasgrid Finland is currently investigating the matter in cooperation with Elering," it added.

The state of the Finnish gas system was stable on Sunday morning and supply of gas in Finland was secured for the time being through the country's Inkoo floating LNG terminal, Gasgrid said.