"Biden's statement about Putin is unacceptable for the head of state," Anadolu quotes him as saying.
As RIA Novosti reports, Erdogan also called Putin's response to Biden's statement luxurious.
"He (Putin) is very smart and gave a splendid answer," Erdogan's agency was quoted as saying.
Earlier, Putin commented on the statement of Biden, who answered affirmatively to the provocative question of the journalist whether he considers the Russian leader a "killer".
The Russian leader wished his American colleague good health.
Later, Putin also suggested that Biden hold talks online in an open mode.
At the same time, Biden did not answer reporters when asked about the possibility of a conversation with Putin.