Sporadic acts of violence continued throughout the postwar years. Despite the peacekeeping status of the Russian peacekeepers in Abkhazia, Georgian officials routinely claimed that Russian peacekeepers were inciting violence by supplying Abkhaz rebels with arms and financial support. Russian support of Abkhazia became pronounced when the Russian ruble became the de facto currency and Russia began issuing passports to the population of Abkhazia. Georgia has also accused Russia of violating its airspace by sending helicopters to attack Georgian-controlled towns in the Kodori Gorge. In April 2008, a Russian MiG – prohibited from Georgian airspace, including Abkhazia – shot down a Georgian UAV.