A stretch of Lakeshore Avenue along the 7400 block was closed for about a half-hour Saturday morning in response to a situation involving hazardous materials.
David Schmitke, spokesman for Clark County Fire District 6, said that crews responded to a BNSF rail car sitting on the line running adjacent to the avenue that was venting some sort of gas. He said the gas turned out to be argon, which is nontoxic and is not a heavy metal.
Although argon is a colorless, odorless and naturally occurring chemical element, Schmitke said it can replace oxygen, and the street was shut down as a precaution. No injuries were reported, he said.