The Roca train service between A. Korn and Chascomus was halted this morning following a collision with a person at Chascomus station. Transporte AMBA, the state transport agency, issued an alert on X (formerly Twitter) at 11:57 AM local time, affecting thousands of daily passengers. No further details about the individual or restoration times have been provided yet.

Transporte AMBA — the agency overseeing public transport in the Buenos Aires metropolitan area — reported through its official X account at 11:57 AM on Tuesday, August 18, 2026 that the Roca train line, specifically the A. Korn – Chascomus branch, has been interrupted due to a collision with a person at the Chascomus station. The alert, marked with a red warning emoji, indicates an urgent situation affecting circulation along this route.

⚠️ Official alert: 'Roca train: the A. Korn – Chascomus service is interrupted due to a collision with a person in Chascomus.' — @TransporteAMBA

What we know so far

The incident occurred at the Chascomus station, the southern terminus of this branch line that connects the town with Alejandro Korn in San Vicente County. Authorities have not yet released details about the identity of the person involved or their current condition. In such cases, emergency protocols are typically activated, including medical assistance and investigations. Passengers are strongly advised to monitor official channels for updates on service resumption.

Impact on passengers

The suspension directly affects thousands of daily commuters who travel between the southern Greater Buenos Aires suburbs and Chascomus, a city located approximately 120 kilometers south of Buenos Aires city. The agency recommends that travelers consider alternative bus services or other transport options while the line remains closed.

Why is this important?

The Roca train is one of the most heavily used rail lines in Argentina, connecting Constitución station in Buenos Aires with southern districts such as La Plata, Quilmes, Berazategui, and Chascomus. This branch is one of the longest, and incidents involving people on the tracks are a recurring challenge across the network.

Safety context

According to the National Transport Regulatory Commission (CNRT), pedestrian accidents on rail tracks represent a significant share of railway incidents in the country. Authorities continuously stress the importance of respecting barriers, crossing only at designated areas, and never walking on the tracks.

Official sources and updates

For the latest information, follow Transporte AMBA on X and the Ministry of Transport of Argentina. You can also check the SOFSE (State Railway Operator) website for real-time service status.

This is a developing story. More details are expected from authorities in the coming hours.