Iran has summoned the British ambassador in Tehran following an incident in London where protesters removed the Iranian national flag from the country’s embassy. The protest took place on Saturday outside the Iranian embassy, drawing hundreds of participants. At one point, a demonstrator climbed onto the embassy balcony and took down the flag, prompting Tehran’s formal protest.

Iran’s state television reported that authorities also accused a specific terrorist organization of spreading false information through media and encouraging violence and terrorism. The report noted that the BBC Persian Service and Iran International, both based in the United Kingdom, have long faced accusations from Iranian officials. Meanwhile, London’s Metropolitan Police confirmed that two protesters were arrested and that officers were searching for another individual involved in the intrusion.

Many demonstrators reportedly carried images of Reza Pahlavi, the exiled son of Iran’s deposed monarch Mohammad Reza Shah Pahlavi, whose regime was overthrown in the 1979 revolution. Some protesters called for his return to Iran.