SpaceWar.com reports: “The Kremlin refused to say Friday whether Russia was preparing for strikes on the capital after images of missile defence systems on several Moscow rooftops circulated on social media.

The pictures appeared to show a Pantsir anti-aircraft system installed on the defence ministry building along the Moskva River, which was visible Friday on the main ministry building in the capital.

A video on social media showed a Pantsir system purportedly being hoisted onto the roof of a building in the centre of Moscow.

Another Pantsir system was installed some 10 kilometres (six miles) from President Vladimir Putin’s residence in Novo-Ogaryovo outside Moscow, independent Russian-language media reported.

Pantsir-S1 is an air defence system designed to protect against a variety of weapons including aircraft and ballistic and cruise missiles…”