A Malaysian airlines plane was reportedly shot down over Ukranian airspace today. The story is developing and moving fast, but data from airline data firm FlightAware shows that particular flight - Malaysian Flight 17 - runs daily and always goes through Ukranian airspace. In other words, today's flight does not appear to have deviated from the paths of previous flights in any significant way.
Here's the tracker for today's flight, showing where FlightAware lost contact with the plane in
Western Eastern Ukraine [updated 12:50 pm with new FlightAware information]. Reports indicate the plane crashed in Eastern Ukraine, so it flew a considerable distance through Ukrainian territory before the incident.