Russia has fired on and seized three Ukrainian naval vessels off the Crimean Peninsula in a major escalation of tensions between the two countries. Two gunboats and a tug were captured by Russian forces. A number of Ukrainian crew members were injured. The countries blame each other for the incident. Ukraine's government said it could declare martial law. The crisis began when Russia accused the Ukrainian ships of illegally entering its waters. The Russians placed a tanker under a bridge in the Kerch Strait - the only access to the Sea of Azov, which is shared between the two countries. Ukrainian President Petro Poroshenko called an urgent meeting of his "war cabinet" over the incident, his spokesperson said.
No, they disarmed in 1998 I believe Though they probably have some secret ones They had the worlds third largest cache of nukes after the fall the soviet union but they gave them up after pressure from Russia and the U.S. in return for sovereignty.