A city bus caught fire on Aleja Stanów Zjednoczonych (USA Avenue) in Warsaw’s Praga-Południe district, causing a complete traffic stoppage in one direction. Polish news outlet Polsatnews.pl first reported the incident. As of the latest reports, emergency services have not received any information regarding injuries to passengers or bystanders. Firefighters and police are currently on the scene working to extinguish the blaze and manage the resulting traffic disruption. The cause of the fire remains unknown at this time. Authorities have not yet provided an estimate for when traffic will resume normal flow. Further updates will be provided as they become available.