A 29-year-old man was critically injured Tuesday in what police said was a methamphetamine explosion at a house near St. Peters.
About 10:30 p.m. the garage of a home in the 900 block of Mallory Drive in unincorporated St. Charles County exploded, said Lt. Craig McGuire of the St. Charles County Sheriff's Department.
A neighbor contacted the sheriff's department after hearing an explosion, McGuire said Wednesday.
McGuire said sheriff's deputies later discovered the men were making meth in the garage at the time of the explosion.
Witnesses reported seeing two men running from the house and then drive off in an orange Dodge Charger, McGuire said.
"While we were en route (to the home), one of our officers spotted the car and chased it eastbound on Highway 364," he said.
McGuire said officers lost sight of the vehicle at Veterans Memorial Bridge over the Missouri River.
A half-hour later, Chesterfield police stopped a Charger on Highway 40 (Interstate 64) near Boone's Crossing, McGuire said.
The sheriff's department arrested the 20-year-old driver and the passenger was taken to a hospital with burns, which McGuire described as life-threatening.