Major Traffic Collision Disrupts Upland Intersection

Traffic Collision on North Mountain Avenue in Upland Causes Delays Today

📍 Upland, CA

📅 Published: June 26, 2025 at 11:02 PM

Map showing the location of the accident in Upland, CA
Upland, June 26, 2025 -

A traffic collision occurred today at the intersection of North Mountain Avenue and Mesa Terrace in Upland, CA, leading to significant traffic disruptions. The incident, reported around 10:33 PM, involved two vehicles. Witnesses noted that one vehicle deployed its airbags, indicating a serious impact.

Emergency traffic management units swiftly arrived at the scene to control the situation and manage traffic flow. While specific lane closures were not detailed, motorists in the area should expect potential delays and congestion as authorities work to clear the scene.

Reports indicate that two individuals exited one of the vehicles and fled the area heading south on North Mountain Avenue. This has raised concerns among local residents, and emergency responders are monitoring the situation closely.

Drivers are advised to seek alternate routes to avoid the intersection until the traffic incident is resolved. The combination of vehicle involvement and ongoing emergency response may lead to backups, particularly during the evening hours when traffic is typically heavier.

Stay tuned for updates on this traffic collision as more information becomes available regarding the situation and any necessary road closures.

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