Iran will respond to any aggression, even the unintentional ones. Iranian Foreign Ministry spokesman Saeed Khatibzadeh on Monday stated this to reporters, commenting on the ongoing crisis in Nagorno-Karabakh which has resulted in missiles occasionally hitting some areas inside the Iranian territory, IRNA reported.

Khatibzadeh said the security of the nation is Iran's “red line.”

He added that the Iranian armed forces have already sent necessary warnings.

Iran will respond to any aggression, even the unintentional ones, Khatibzadeh reiterated.