PANAJI, India. May 5 (Interfax) - The drone attack on the Kremlin is a hostile act, and Russia will respond with concrete actions, Russian Foreign Minister Sergei Lavrov said.
"Obviously, it was a hostile act. It is absolutely clear that Kiev terrorists could not have carried it out without the knowledge of their 'masters'. We will not respond with talk on whether this is casus belli or not, we will respond with concrete actions," Lavrov told reporters on Friday.