Moscow accused the US on Tuesday, August 20th of provoking military tension by testing a medium-range cruise missile immediately after annulling the US-Russian missile agreement, AFP reported.
The timing of the launch, two weeks after the 1987 Intermediate-range Nuclear Forces Treaty with the Soviet Union (INF) cancellation, means the INF had not prevented the US from developing the missile, Russian Deputy Foreign Minister Sergei Ryabkov told state news agency TASS.
"This is all a cause of regret. The US has obviously taken a course towards escalation of military tensions. We won't react to provocations," Ryabkov said.
On Monday, the US tested a ground-launched missile that was banned under the INF treaty with the Soviet Union.
The annulment of the INF sparked concerns over another possible arms race between two old nuclear rivals.
"We will not allow ourselves to get drawn into a costly arms race," Ryabkov said.
He added that Moscow would stick to a unilateral moratorium on such missile systems "if and when we get them, as long as the US does not deploy them anywhere in the world.”
Under the INF, all land-based missiles, conventional and nuclear, that could travel between 500 and 5,500km (310 and 3,400 miles) were banned to spare Europe the threat of nuclear destruction.