Monday 3 p.m.  WICHITA, Kan. (AP) — Police in Wichita suspect a designated driver suffered a serious medical condition before a weekend crash that killed the driver and three passengers.

KWCH-TV reports four women hired the driver from a Wichita car service on Saturday evening to take them home from St. Patrick’s Day festivities.

Police said Monday the SUV was going about 70 mph when it swerved, went airborne, struck a wall and caught fire. Investigators believe one of the women tried to grab the wheel after the driver suffered an unspecified medical condition and lost control.

The victims were identified Monday as the 39-year-old driver, Andrew Montgomery; a front-seat passenger, 26-year-old Jessica Metzger; and two backseat passengers, 23-year-old Sara Smith and 27-year-old Victoria Dougherty.

A fourth passenger was thrown from the vehicle. She remained hospitalized Monday.