The crash occurred early Monday morning on the Dellepiane freeway in Buenos Aires City's southern Villa Lugano neighbourhood. One man was killed and four more were injured.
A national congressman is facing manslaughter charges in Argentina after the car he was driving crashed into another vehicle, killing one person and injuring four more.
Lawmaker for Salta province Alfredo Olmedo said he cooperated with authorities from the get go. He denied that he was driving under the influence of alcohol or drugs.
"The alcohol test came back zero. I drank mineral water. I had neither consumed alcoholic beverages nor take any drugs (prior to the crash)", he said.
"I estimate that I was driving at 98 kilometres per hour", Olmedo told the TN news channel. "I am very respectful of the speed limit. I collaborated with police immediately after the crash".
The crash occurred early Monday morning on the Dellepiane freeway in Buenos Aires City's southern Villa Lugano neighbourhood.
The fatal victim was 33-year-old Bolivian national Javier Aguilar Herrera, police informed. He died in hospital.
Two of the injured passengers were identified as a 34-year-old man and 23-year-old man.