The two killed, who have not yet been identified, were at the property where the explosion and fire occurred around 12:30 p.m., Ontario Fire Chief Ray Gayk said. The tank car was parked on a spur off a main rail line along Interstate 215 in Riverside County, about 57 miles (92 kilometers) east of Los Angeles. Sign up forFOX 11s Fast 5 newsletter. Fridays passengers off train 701 between Moreno Valley and downtown Riverside are eligible to receive a reimbursement of up to $50. Officials hoped to put out the fires later Tuesday evening. Officials are unsure how long the situation will last, and are waiting to see if the heat of the hot summer day in the Inland Empire will increase the temperature in the tank and increase the risk of explosion. The heat in the rail car builds pressure and it could have a release, meaning some kind of violent explosion, he said. (ABC7 Los Angeles via AP), Connect with the definitive source for global and local news. Times staff writers Alexandra E. Petri and Gregory Yee contributed to this report. Boiling chemical on rail car forces evacuation in California California rail car chemical leak draws fears of violent explosion What they are telling me is this can resolve itself in two days; it could get worse before it gets better, he said. Metrolink trains are unable to travel through the evacuation area, impacting service to Perris. (Photo by Watchara Phomicinda, The Press-Enterprise/SCNG), Animal rescue volunteers evacuate a horse from the back of a home where an explosion took place in Ontario on Tuesday, March 16, 2021. CALIFORNIA RECEIVES $25 MILLION GRANT FOR HIGH-SPEED RAILROAD, Another view showing the stricken rail car. A trash truck erupted in flames Monday in Temecula, causing a liquid propane tank to explode, hurling debris into nearby fire engines and injuring one person. (Photo by Watchara Phomicinda, The Press-Enterprise/SCNG), Debris and rubble in the back of a destroyed home after a firework explosion that rocked Ontario on Tuesday, March 16, 2021.