UNITE NATIONS, October 25. /TASS/. The International Atomic Energy Agency (IAEA) operates within its mandate regarding Russia’s information about the potential Ukrainian "dirty bomb" provocation, UN Secretary General’s spokesman Stephane Dujarric said Tuesday.

Several IAEA experts are expected to travel to Ukraine for inspection of nuclear site later this week.

"The IAEA is acting on its mandate," Dujarric said, answering a reporter’s question.

Dujarric once again emphasized the "need to avoid any escalation or any action that would lead to miscalculation and make this conflict even worse."

On Monday, Russian Nuclear, Chemical and Biological Protection Troops head Igor Kirillov said during a briefing that the Russian Defense Ministry has made its forces ready to operate "in radioactive contamination conditions," because it has information about Kiev’s readiness to use a "dirty bomb." Russian Foreign Minister Sergey Lavrov also said about the "dirty bomb" threat, adding that Russia will raise this issue at the UN Security Council level.

Russian Defense Minister Sergey Shoigu had phone calls with his counterparts from the US, the UK, Turkey and France, warning them about this threat from Ukraine. However, Washington, London and Paris claimed that they do not believe the Russian information.