President Trump said Saturday it’s a “shame” former National Security Advisor Michael Flynn lied to his administration and the FBI because “there was nothing to hide.”

“I had to fire General Flynn because he lied to the Vice President and the FBI,” the president tweeted, before referring to the news Friday that Flynn pleaded guilty to lying to the FBI in January about his contacts with the Russian ambassador.

“He has pled guilty to those lies," Trump added. "It is a shame because his actions during the transition were lawful. There was nothing to hide!”

Trump told reporters earlier in the morning that he was “not” worried after Flynn’s guilty admission because there "there has been absolutely no collusion” between his campaign and Russian officials.

Flynn, who charged with one count of “willfully and knowingly” making “false, fictitious and fraudulent statements," has agreed to cooperate with special counsel Robert Mueller’s Russia probe, which is looking into whether the Trump campaign colluded with the Kremlin.

Flynn was fired from the White House in February after misleading Trump officials about his sanctions-related communications with the Russians.

His reaching out to Russian officials during the transition period could put him in danger of violating the 1799 Logan Act because he was a private citizen at the time.