Update: 1 UC Berkeley Student Missing, 3 Injured in Nice, France Terror Attack

The search for Nick Leslie is becoming more desperate. More than 24 hours have passed since a terrorist attack in Nice, France and the UC Berkeley student still hasn't contacted his family.

Three UC Berkeley students studying abroad were injured in Thursday's attack, according to the university, in addition to Leslie's disappearance. The attack left more than 80 dead and hundreds injured, including some that are clinging to life.

"Two of the injured students were released after medical treatment and have returned to their summer dormitories in Nice," said Robert Sanders of UC Berkeley media relations. "They are Vladyslav Kostiuk, 23, a senior computer science major in the College of Letters and Science, who sustained a broken leg; and Diane Huang, 20, a senior majoring in environmental economics and policy in the College of Natural Resources, who suffered a broken foot.

"Daryus Medora, 21, whose leg was broken, remains in the hospital. He is an undeclared sophomore in the College of Letters and Science."

The students were attending a 15-day program called Entrepreneurship and Innovation in Europe, part of the international European Innovation Academy.

"We have 85 over there. We found 84,” said university spokeswoman Claire Holmes. “We’re devastated … we’re hoping that Nick is coming home.”

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Leslie’s family has launched a desperate search for the 20-year-old. An aunt and uncle who live there have gone from local hospital to hospital searching for information about their missing nephew.

A friend told the family that they saw Leslie running away after the attack, but his failure to return to student housing and the inability of his family to contact him has everyone worried.

Sanders said the search for Leslie is intense.

"Campus study abroad, risk services office and student affairs staff are working with fellow students in France, the program director on the ground, local officials, U.S. consular officials and the family to locate him," he said.

Leslie is from Del Mar and is a graduate of Torrey Pines High School.

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Meanwhile, Sanders said, "The (study abroad) program has been suspended temporarily to commemorate a national three days of mourning in France, and will continue through its planned end date on July 24. The campus has offered to bring home any students who wish to leave the program before its end date, and so far, three students have chosen to do so and return home to the U.S."