Hundreds of protesters stormed the Swedish embassy in central Baghdad in the early hours of Thursday morning, scaling its walls and setting it on fire in protest against the expected burning of the Holy Quran in Sweden.

All Baghdad embassy staff were safe, the Swedish foreign ministry press office said in a statement, condemning the attack and highlighting the need for Iraqi authorities to protect diplomatic missions.

Supporters of Shia cleric Muqtada Sadr called Thursday’s demonstration to protest the second planned burning of the Holy Quran in Sweden in weeks, according to posts in a popular Telegram group linked to the influential cleric and other pro-Sadr media.

Sadr, one of Iraq’s most influential figures, commands hundreds of thousands of followers whom he has called to the streets, including last summer when they occupied Baghdad’s heavily-fortified Green Zone and engaged in deadly clashes.