More information is being released in the investigation into the deadly hit-and-run crash that shut down Interstate 70 for hours Saturday night into Sunday.

9NEWS has learned the suspect identified Monday has an Immigrations and Customs Enforcement hold on him; ICE believes 26-year-old Ivan Zamarripa-Castaneda is from Mexico.

Per policy, Denver will not hold him for ICE without a court order if he is able to bond out of jail.

He was arrested Monday morning and held for investigation of vehicular homicide and felony hit and run - at 5 p.m. Tuesday he was still in jail.

Denver Police say Zamarripa-Castaneda was merging his pickup truck onto eastbound I-70 near Brighton Blvd. when he struck a semi-truck. The semi-truck caught fire and the driver of the semi was killed.

PREVIOUSLY | Suspect identified in fatal I-70 hit-and-run crash

Zamarripa-Castaneda allegedly fled the scene prior to police arriving. Police were able to find him at his home. Police said his speech was slurred, his breath had an odor of alcohol and he was not able to complete a voluntary roadside maneuver test.

He was arrested and later agreed to have a blood test. Results of the blood samples are pending.

The name of the semi-truck driver has not been released.

MORE | Lanes of I-70 were shut down for hours near I-25 after semi catches fire in wreck