The incident occurred at approximately 5 p.m. on Saturday afternoon at a beachfront home just off of the Pacific Coast Highway in Malibu, California, according to our Los Angeles sister station KABC.
"(There were) probably like 10 people on the back deck and we heard a crack and I literally saw all of my best friends and my girlfriend fall 15 feet to the rocks," said one man who spoke to KABC about the accident. "It's a freak accident. Like, I don't know, I don't know how that happens. I don't know how that happens. So, it is pretty cut and dry. The deck literally just gave out."
Witnesses say that the group had gathered at the home on Saturday for a birthday party when the deck collapsed.
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Investigators say the deck's integrity combined with the weight of too many people likely caused it to buckle and send the victims crashing onto the rocks below, according to a report from KABC.
A total of nine people were injured in the collapse, including four who were taken to be treated at the hospital. The extent of the injuries suffered in the accident have not been disclosed by authorities but none of the injuries seem to be life-threatening.
"We are looking at approximately 10 to 15 feet ... Down below are jagged rocks, large rocks, so a very dangerous situation and fortunately, no one was hurt seriously or killed in this situation," Captain Ron Haralson of the Los Angeles County Fire Department told KABC.
Investigators told KABC that building and safety inspectors will now assess the scene of the accident and determine if there is any structural damage to the home.
"It could have been a lot worse," a male witness told KABC. "But it is pretty awful."