PARIS — The man shot dead at Paris’s Orly airport after attacking a soldier was under the influence of drugs and alcohol at the time, a judicial source said on Sunday.

Investigators are still trying to understand what motivated Saturday’s assault by 39-year-old Ziyed Ben Belgacem, which led to a major security scare and the temporary closure of the capital’s second-busiest airport.

"Toxicology tests carried out on Sunday showed an alcohol level of 0.93 grams per litre in his blood, and the presence of cannabis and cocaine," the source said.

Ben Belgacem’s father had insisted earlier Sunday that his son was "not a terrorist" and that his actions were caused by drink and drugs.

Ben Belgacem, who was born in France to Tunisian parents, grabbed a soldier on patrol at Orly’s southern terminal on Saturday morning. He put a gun to her head and seized her rifle, saying he wanted to "die for Allah".

The attacker, who had also fired at police in a northern Paris suburb earlier that morning, was shot dead by two other soldiers after a scuffle.

Ben Belgacem’s father insisted his son -- who had spent time in prison for armed robbery and drug-dealing -- was not an extremist.

"My son was not a terrorist. He never prayed, and he drank," the father, who was in shock and whose first name was not given, told Europe 1 radio.

Investigators were examining his telephone.

The attack at Orly comes with France still on high alert following a wave of jihadist attacks that have claimed more than 230 lives in two years.

The violence has made security a key issue in France’s two-round presidential election on April 23 and May 7. — AFP