An explosion erupts from a CSX train derailment in Mount Carbon, W.Va., as seen from across the Kanawha River on February 16, 2015. A CSX train hauling North Dakota crude derailed in West Virginia on Monday, setting a number of cars ablaze, destroying a house and forcing the evacuation of two towns in the second significant oil-train incident in three days. Steve Keenan/Reuters The governor of West Virginia declared a state of emergency Monday evening after a freight train carrying crude oil derailed Monday afternoon in Fayette County and exploded into flames.

As many as 15 of the 109 train cars derailed, and at least one tanker jumped the tracks and fell into the river, West Virginia Public Safety spokesman Lawrence Messina said. The train car is now leaking crude oil into the Kanawha River.

The derailment also caused a house to catch fire, officials said.

The CSX-owned train ran off the tracks at about 1:20 p.m. ET, the Los Angeles Times reports.

The train was carrying crude oil from North Dakota to Yorktown in Virginia, CSX said in a statement.

"The company is working to contain oil found in a creek that runs parallel to CSX tracks, and water utilities on the nearby Kanawha River are taking precautions.

Fires around some of the cars will be allowed to burn out," CSX said.

According to the LA Times, about 1,000 people have been evacuated, and the Montgomery water treatment plant has been shut down because it gets water from the area near the accident.

The US Transportation Department is weighing tougher safety regulations for rail shipments of crude, which can ignite and result in huge fireballs.

Here are some pictures via Twitter:

Another explosion just happened here at the train derailment: pic.twitter.com/ZqoSCVRoAH — Matt Heckel (@WSAZmattheckel) February 17, 2015

Massive fireballs captured at the scene of train derailment in West Virginia http://t.co/fjgrtfOmDT pic.twitter.com/9mXIejsrVh — Mashable (@mashable) February 17, 2015

DEVELOPING: Oil train derails in West Virginia; at least 3 oil tankers and a home in flames: http://t.co/CpjduPjoVD pic.twitter.com/168UTkNHcx — ABC News (@ABC) February 16, 2015

Train derailment causes oil spill and fire in West Virginia: http://t.co/yC3RkdF4BK pic.twitter.com/7YXub36daD — TODAY (@TODAYshow) February 17, 2015

Here's a video of the train explosion, courtesy of NBC News:

