Just a heads-up. The Leningrad Nuclear Power Plant west of St. Petersburg on the Gulf of Finland suffered an accident on December 18th, according to the Crimean News Agency. A pipe carrying steam from the reactor in the second BWR [Boiling Water Reactor] plant apparently "cracked" [burst, failed] in the turbine hall, releasing radioactive steam and forcing an evacuation of the facility after the reactor was manually scrammed. This would be unit-2 of at the 4-unit facility.
The accompanying photo was taken of the Leningrad unit-2 plant today (December 20, 2015), showing that radioactive steam is still being emitted in bulk to the atmosphere. Officials at the facility did say they don't "think" the situation will develop into another Chernobyl. That does not sound particularly reassuring to me, but so far so good.
The four reactors at LNPP are the RBMK-1000 design of Chernobyl type graphite moderated plants. Two more reactors of the newer VVER-1200 type were granted construction license in 2009 and 2010, the first scheduled to go into commercial operation in 2016, and two more are planned in the future.
The population near the plant was encouraged not to panic, as winds are carrying the plume of radiation toward Estonia and Finland. A Latvian news source reported that the government assured citizens there was no danger from the release, the Finnish monitoring stations aren't showing a spike at present, 3 stations did mark one on the coast east of Helsinki (likely plume path), reaching up to .3µSv/hr on the 18th/19th. Which is .03mr/hr, just above background average.
Measurements of radiation in downtown Sosnovy Bor, 5 km [~3 miles] from the plant, were up to 20mr/hr* (a level about twice the average daily dose most non-grunt workers on the Island at TMI2 absorbed in the days/weeks after that meltdown), so let's at least hope the residents were warned to "shelter in place" for the duration of this ongoing accident. And have some idea of how to do that properly. Area and regional pharmacies are reported to have ordered potassium iodide, so residents could be getting that. Radiation levels in St. Petersburg, a city of 5 million ~40 miles west of the nuclear facility, are reported to be normal.
The reactors at Leningrad have been plagued with accidents on a semi-regular basis since 1975, most never reported to the media or public. Including one accident at unit-1 in 1975 that came dangerously close to the very same accident later experienced at Chernobyl.
* The reported peak figure of 20mr/hr in the nearest town — which is indeed suspiciously high — is pointed out in the comments to be a mistranslation of µR (microrem) as mR (millirem). Which isn’t enough radiation to register above the considerably higher background. If indeed the Russians have taken to measuring and reporting radiation dose exposures in Rem/Rad instead of the internationally used Sievert. A very odd thing for them to do all of a sudden with this accident when they never did before, but technical deception is a regular art form with nukes of all nationalities. No surprise there.