The family of Michelle Hoang Thi Le, a Hayward nursing student who went missing since Friday, has offered $20,000 for her safe return.

Le, a 26-year-old student of Samuel Merritt University, was last seen, Friday, at Kaiser Permanente Hayward Medical Center at 7p.m.

During a class break, Le went out and disappeared. Her car was found parked a few blocks away from the medical center.

The police tried calling her cellphone number but couldn't get an answer. They suspect it's either switched off or out of range.

The authorities are investigating whether Le has gone to Reno, Nevada. The San Mateo resident told her friends that she would be visiting Reno to meet some friends.

Le's distraught family is hoping for her safe return. Le's brother Michael said they have gathered $20,000 as a reward for anyone who can provide any information for her safe return.

It's really hard not to assume the worst, but we’re trying, 23-year-old Michael Le said. That's the hardest thing, staying positive.

Le's friends said she is social but a private person. They said they have been instructed by the police not to comment too much on the matter as it could jeopardize or compromise their investigation.

Hayward police have not ruled out foul play.

Le is still being treated as a missing person. She is described as 5'6 tall, with black hair and brown eyes.

Anyone having information on Le is requested to contact Hayward Police Department at 510-293-7000.