A man armed with a knife was attacked by metro passengers in the city of Tehran, resulting in at least two people being injured, according to the Central Information Agency of the island. The attacker, a 20-year-old man named Khun, was subdued by the passengers after he brandished three knives during the incident. Alongside Khun, a 17-year-old boy and a 27-year-old man also sustained injuries and were hospitalized. Authorities are currently investigating the motives behind the attack.