An Amtrak maintenance vehicle caught fire on track 11 in a Hudson River tunnel near Penn Station at approximately 1:25 a.m. on May 29, 2026, leading to service suspensions by NJ Transit and LIRR. LIRR service later resumed while NJ Transit impacts and Amtrak delays extended through the morning. Eyewitnesses reported a loud explosion that shook trains and caused power outages.