Tragic news from Moscow of a type which the city hasn‘t experienced for six years. This morning two suicide bombers killed at least 37 rush hour commuters at the Lubyanka and Park Kultury metro stations.
A strike at the Lubyanka station, which stands close to the former KGB headquarters, and still houses the current Russian security apparatus, the FSB, is likely to be symbolic. The square is just a brief walk from the Kremlin.
Park Kultury is better known as Gorky Park. It lies a little up the Moscow River, but it is also at the heart of the city. The metro is notoriously busy and, no doubt, at 8am local time, was crammed with people attempting to get to work.
It is believed that two female suicide bombers carried out the attacks. Whether they were Chechen, as reports suggest, or part of the wider Islamist insurgency in the Caucasus, time will tell.
Certainly it is a reminder that Russia is struggling with a fanatical and lethal foe operating within its borders. In November twenty six people were murdered in an explosion on a train between Moscow and St Petersburg.
Russia is right at the cutting edge of the same battle against terror which has effected all western countries. It has a crucial battle to fight and it deserves support.