On August 18, 2026, at 10:44 PM, Transporte AMBA issued an orange alert for the Urquiza train line: service running between terminals but with significant delays and cancellations. Passengers faced disruptions, and the cause remains unknown. Here's what happened and what to expect.

On August 18, 2026, at 10:44 PM, the official Transporte AMBA account (@transporte_amba) posted a notice on X (formerly Twitter) stating that the #TrenUrquiza was completing its full route between terminals, but with delays and cancellations. The message, accompanied by an orange dot 🟠 (which in the alert system indicates a warning), raised alarms for commuters relying on this line to get home.

What we know so far

According to the tweet, the service was not suspended but did experience considerable delays and some train cancellations on various sections. As of now, no official reason has been given, but such issues are often linked to technical problems, signal failures, or minor incidents on the tracks.

The Urquiza line is one of the most used in the Buenos Aires metropolitan area, connecting the western suburbs with Federico Lacroze station in the Chacarita neighborhood. It runs between General Lemos (San Miguel) and Federico Lacroze, covering approximately 26 kilometers and 23 stations, crossing districts like Tres de Febrero, San Martín, Hurlingham, and San Miguel.

Impact on passengers

Those waiting for the train during the evening were affected by the delays, and several stations saw complaints about the lack of real-time information. Cancelations forced many to seek alternative transport (buses or private cars), leading to extra costs and lost time.

Alert system explained

The Transporte AMBA alert system uses colors: green (normal service), orange (delays or partial disruptions), and red (total suspension). In this case, orange indicated an irregular situation but not a complete shutdown.

What to do if you're affected

  • Check service status before heading out: official Transporte AMBA channels and the Mi Tren app often provide real-time updates.
  • If delays are prolonged, consider alternative transport such as bus lines running parallel to the railway (for example, lines 53, 166, 176, among others).
  • Demand clear information at stations: passengers have the right to know the reason for the delay and estimated wait time.

From Imago, we recommend staying tuned to official announcements, as service may continue to experience delays into the early morning and next day.

This report is based on the original announcement by Transporte AMBA on X.