Russian President Vladimir Putin (Xinhua file photo)

MOSCOW, Dec. 17 (Xinhua) -- Russian President Vladimir Putin called U.S. President Donald Trump to express gratitude to the Central Intelligence Agency (CIA)'s information that helped foil terrorist attack attempts in St. Petersburg, the Kremlin said on Sunday.

Russia's Federal Security Service said Friday that it detained seven Islamic State supporters earlier this week for plotting to blow up the famous Kazan Cathedral in St. Petersburg, the second largest city in Russia.

"The information received from the CIA proved to be sufficient for the search and detention of the suspects," said the Kremlin in a press release.

Putin told Trump that the Russian special services, upon receiving information regarding terrorist threats against the United States and its citizens, will immediately provide it to their U.S. counterparts.

This was the second phone conversation between Putin and Trump within a week following a call on Thursday, when the two presidents discussed "urgent issues" in bilateral diplomatic relations and situation on the Korean Peninsula.