MECHANICSVILLE, Md. (WJZ) — A person is dead after a tree fell onto a moving vehicle in St. Mary’s County Tuesday morning as Tropical Storm Isaias blew through Maryland.

The accident happened along Three Notch Road near Charlotte Hall School Road in Mechanicsville around 9:33 a.m. The St. Mary’s County Sheriff’s Office said the driver was heading south when a tree on the shoulder collapsed, trapping the driver inside.

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The sheriff’s office identified the woman killed as 31-year-old Tiaesa Sade Lake of Suitland. Lake was driving a 2003 Mercury Grand Marquis when she was killed.

Lake was driving southbound on Three Notch Road when a large tree fell onto her car. She was pronounced dead on scene.

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At this time, alcohol, drug impairment and speed do not appear to be factors in the collision.

Anyone who witnessed the collision that has not yet provided a statement is asked to contact Corporal Vincent Pontorno at (301) 475-4200 extension 72337 or by email at

Citizens may remain anonymous and contact Crime Solvers at (301) 475-3333, or text a tip to “TIP239” plus their message to “CRIMES” (274637). Through the Crime Solvers Program tipsters are eligible for an award of up to $1,000 for information about a crime in St. Mary’s County that leads to an arrest or indictment.

For official news and information, follow the St. Mary’s County Sheriff’s Office on Twitter @firstsheriff.

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