In his message, the King said that he learned with “great grief” the sad news of this “despicable terrorist act.”
The attack claimed the life of one person and wounded four others.
The monarch concluded his statement, by expressing his sincere feelings of compassion and his full solidarity.
The perpetrator of the attack was shot dead by the police shortly after it occurred before 9 p.m. local time in the old Opera district in central Paris.
Initial investigations carried out by French authorities note that the suspect is a French citizen born in 1997, in the Russian republic of Chechnya.
BBC reported that the suspect was under surveillance and is among people who could pose threat to the state’s security.
The so-called Islamic State (ISIS) claimed responsibility for the attack.