Police in Moldova have said they foiled a plot by groups of Russia-backed actors who were trained to cause mass unrest during a protest against the country’s new pro-western government.The head of Moldova’s police, Viorel Cernauteanu, said in a news conference that an undercover agent had infiltrated groups of “diversionists,” some Russian citizens, who allegedly were promised $10,000 to organise “mass disorder” during the protest in the capital, Chisinau, on Sunday. Seven people were detained, he said.