GRAPEVINE, Texas (CBSDFW.COM) – A mother and son are in critical condition after nearly drowning in Grapevine Lake.

Around 2:30 p.m. Tuesday, they were cooling off in Grapevine Lake needed to be rescued from the water.

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Grapevine Lake rescue (Chopper11)

The Grapevine Fire Department says a mother noticed her son needed help.

She went in after him and ended up needing help herself.

Divers pulled her son out of the water.

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The fire department says neither one of them had a life jacket on.

“Again, no life jackets,” said Assistant Fire Chief John Sherwood. “We can’t stress that enough that wearing a life jacket when we’re in and around water is imperative for your safety.”

Four people have died in Grapevine Lake since Mother’s Day.

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That’s double the amount of drownings there in 2017.