Around 3.30 a.m. on Sunday morning a 100-car CSX freight train derailed 35 cars on the west side of Indianapolis.

The Avon-bound train collided with the runaway train cars near Girls School and Rockville roads.

Due to the accident two CSX employees were hurt, including train’s conductor, David Plummer of Anderson, according to the HeraldBulletin.com. The two were conscious and were taken to the Methodist Hospital late Sunday. Anderson was in the progressive care unit and was under serious condition. He suffered from broken bones in his legs.

According to Wayne Township Fire Department Capt. Troy Wymer 112 cars were released by accident from the CSX yard in Avon, about five miles from the accident site.

Indystar.com says that the cars rolled without locomotive and crashed into the 100-car train which was making its way to Avon.

Due to impact 35 cars from the Avon yard were derailed and 3,500 gallons of diesel fuel and 2,000 gallons of soybean oil were spilled.

Gary Sease, spokesman of the CSX, said that the cause of the accident is being investigated.

The yard in Avon is one of the 15 biggest of the 50 operated by CPX. Everyday 18 trains are dispatched from Avon.

According to a Federal Railroad Administration Web site, in 2007 CSX had 13 train derailments in the country.

Sease said: "As soon as the investigation concludes and we have all the facts, we'll be able to tell what happened."

Two companies were hired by CSX to clean up the site of the accident.

The fuel and oil which were spilled will be cleaned up by another group along with the state environmental authorities.