Putin says Russia will keep testing new missile in combat

President Vladimir Putin said that Russia would keep testing its new Oreshnik hypersonic missile in combat and had a stock ready for use, while Ukraine said it was already at work to develop air systems to counter the weapon.

Putin was speaking a day after Russia fired the new intermediate-range weapon into Ukraine for the first time, a step he said was prompted by Ukraine’s use of U.S. ballistic missiles and British cruise missiles to hit Russia.

Ukrainian President Volodymyr Zelenskiy said Kyiv was working with its Western partners to work out systems to counter “new risks”.

Vladimir Putin described the first use of Oreshnik (hazel tree) as a successful test, and said more would follow.

“We will continue these tests, including in combat conditions, depending on the situation and the nature of the security threats that are created for Russia,” he said in televised comments to defence officials and missile developers.

“Moreover, we have a stock of such products, a stock of such systems ready for use.”

A U.S. official, however, said the weapon Russia used was an experimental one. The official said Russia has a limited number of them and that this is not a capability that Russia is able to regularly deploy on the battlefield.

Read more: Russia says hypersonic missile strike on Ukraine was warning to ‘reckless’ West

Intermediate missiles have a range of 3,000-5,500 km (1,860-3,415 miles), which would enable them to strike anywhere in Europe or the western United States from Russia.

Security experts said the novel feature of the Oreshnik missile was that it carried multiple warheads capable of simultaneously striking different targets – something usually associated with longer-range intercontinental ballistic missiles designed to carry nuclear warheads.

Ukraine said the missile reached a top speed of more than 13,000 kph (8,000 mph) and took about 15 minutes to reach its target from its launch.

The firing of the missile was part of a sharp rise in tensions this week as both Ukraine and Russia have struck each other’s territory with increasingly potent weapons.

Moscow says that by giving the green light for Ukraine to fire Western missiles deep inside Russia, the U.S. and its allies are entering into direct conflict with Russia.

On Tuesday, Putin approved policy changes that lowered the threshold for Russia to use nuclear weapons in response to an attack with conventional weapons.