A spokesman for the Kremlin on Monday reportedly said that a tip provided by the United States “helped to save many lives” by averting a potential deadly terrorist attack in Russia.

“This was very meaningful information that helped to save many lives,” Dmitry Peskov, a spokesperson for Russian President Vladimir Putin Vladimir Vladimirovich PutinNavalny released from hospital after suspected poisoning Ex-Trump national security adviser says US leaders 'making it easy for Putin' to meddle The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting MORE, told journalists, according to Reuters.

Putin on Sunday thanked Trump for the tip from U.S. intelligence agencies during a phone call. The White House said Russian officials, using the tip from the U.S., detained individuals plotting the attack in St. Petersburg.

Russia arrested seven individuals purportedly loyal to the Islamic State in Iraq and Syria, Reuters said.

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Peskov on Monday praised the cooperation between Russia and the United States, two countries that for years have had a tense relationship. Those tensions were amplified this year by U.S. investigations into Russia’s meddling in the 2016 U.S. presidential election. Moscow has denied any interference.

“It cannot be called anything but an ideal example of cooperation in fighting terrorism,” said Peskov. “We should aim for such standards.”