LONDON (Reuters) – Russia’s top state investigative body said on Saturday it was looking into a Russian media report alleging that sabotage experts from Britain’s SAS special forces have been deployed to western Ukraine. The Special Air Service is an elite military force trained to conduct special operations, surveillance and counter-terrorism. Russia’s RIA Novosti news agency on Saturday quoted a Russian security source as saying about 20 SAS members had been sent to the Lviv region. In a statement, the Investigative Committee said it would follow up the report that they had been sent in “to …