Investigators in Ukraine are analyzing the debris of a new intermediate-range ballistic missile (IRBM) fired by Russia at the city of Dnipro on Thursday, marking the first time the weapon had been used on the battlefield.

On Sunday, Ukraine’s Security Service showed the remaining fragments of the IRBM called Oreshnik – Russian for Hazel Tree – that struck a factory to The Associated Press.

Russian President Vladimir Putin confirmed the attack on Thursday evening in an address to the nation and said it was in direct response to the U.S. and the U.K. jointly approving Ukraine’s use of Western-supplied long-range missiles to target Russia.

The Pentagon has said the missile is based on Russia’s RS-26 Rubezh intercontinental ballistic missile (ICBM), though the wreckage has not yet been analyzed, according to security officials on site in an undisclosed location in Ukraine.

The AP and other media were permitted to view the fragments before being taken over by investigators.

The wire service showed images of what it described as mangled and charred wires, along with an ashy airframe about the size of a large snow tire. The remains were all that were left of the IRBM, which can carry nuclear or conventional warheads.

‘It should be noted that this is the first time that the remains of such a missile have been discovered on the territory of Ukraine,’ a specialist with Ukraine’s Security Service said. The specialist only identified himself by his first name Oleh because he was not authorized to discuss the issue with the media.

Ukraine’s Main Intelligence Directorate said the missile was launched from the 4th Missile Test Range, Kapustin Yar, in Russia’s Astrakhan region. Once launched, Ukrainian officials said, it flew for 15 minutes before striking Dnipro. The missile was carrying six warheads, each carrying six subunitions, and its speed was Mach 11.

Last week, Deputy Pentagon press secretary Sabrina Singh confirmed to reporters during a press briefing that Russia had launched the IRBM, noting that it was a ‘new type of lethal capability that was employed on the battlefield.’

She also said the U.S. was notified briefly before the launch through nuclear or risk reduction channels.

Putin also said last week that the missile attacked targets at a speed of Mach 10.

Despite Ukraine’s and Putin’s claim that the rocket reached speeds greater than Mach 10, two U.S. defense officials told Fox News on Thursday the missile was not hypersonic, which, according to NASA, is a speed greater than 3,000 mph and faster than Mach 5.

Along with launching the IRBM for the first time on the battlefield, Putin signed a law to grant debt forgiveness to those who enlist in Russia’s army to fight in Ukraine.

The AP reported that the measure highlights the country’s need for military personnel as it continues its war against Ukraine.

Russian state news agency Interfax said the new legislation allows new recruits enlisting for a one-year contract, to write off debts up to 10 million rubles, or about $96,000.

The law reportedly applies to debts in which a court order for collection was issued, and enforcement proceedings had commenced before Dec. 1, 2024. The legislation also applies to spouses of new recruits.

The Associated Press contributed to this report.