Vladislav Seleznyov, the spokesman for the Ukrainian government's Anti-Terrorism Operation (ATO) has written in a post on his Facebook page that Russian aircraft violated Ukrainian airspace today.

He writes (translated by The Interpreter):

Russian aircraft continue to violate Ukraine's state borders.

Today, 29/07/14, from 8:33 until 8:38, ATO forces recorded a violation of the Ukrainian state border from the Russian side by aerial vehicles.

This is not the first such incident.

On the previous day, several instances were recorded of illegal trespassing of the Ukrainian border by aerial vehicles from the Russian side.

Occasionally these aircraft have gone up to 50 km inside Ukrainian territory, including travelling over the city of Lugansk. It is possible that among the tasks assigned to the Russian Air Force, is provocation, in the same format as that carried out in the town of Snezhnoye.

In turn, I once again remind you that the ATO forces are tightly following the orders of the Supreme Commander of the Ukrainian Armed Forces on the prohibition of using artillery or air strikes in residential areas in the region.