WEST HOLLYWOOD (CBSLA.com) — A water main break flooded an underground parking garage in West Hollywood on Sunday morning.

Cars were submerged by knee-deep water in some areas when firefighters arrived to the garage on Formosa Avenue near Santa Monica Boulevard just before 5 a.m. Sunday. An antique Porsche was among the vehicles thought to be destroyed by the flooding.

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The same garage had flooded in October, 2013.

Water service was shut off to at least 20 customers, according to a spokesperson for the Los Angeles Department of Water and Power.

Officials say the street damage will need to be repaired but they could not elaborate on how long the clean-up would take.

The financial damage was not immediately clear.

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The event marks the third major break in the immediate area in the past three years.

“I just think it’s a bummer that some people have to go through losing their cars and waiting to get them replaced,,” resident Marlo Lussier said.

Residents voiced frustration over the frequency of the breaks in their neighborhood.

“I don’t know what it is, but it’s something that needs to be fixed,” resident Ricky Bansal said. “(The water) was up to the roofs of the cars last time. So I feel bad for them for sure.”

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In all, over 10,000 gallons of water was lost as a result of the break.