Two young children were injured in separate Suffolk County car crashes in which their parents were allegedly driving drunk, authorities said.

In the first case, Lynette McDonough, 38, of Calverton, crashed the 2006 Pontiac sedan she was driving into a telephone pole near 1458 Middle Rd. in Calverton about 12:05 p.m. Her 9-year-old son, who was a passenger in the car, was transported by Riverhead Town Ambulance Corps to Stony Brook University Hospital to be treated for undisclosed injuries, police said. His condition was unclear Thursday night.

McDonough, who had been traveling westbound, was taken to Peconic Bay Medical Center with injuries. She was charged with driving while intoxicated by alcohol and drugs, violating Leandra's Law -- which upgrades a DWI charge to a felony if a child 15 or younger is in the vehicle -- and endangering the welfare of a child. McDonough's arraignment information was not immediately available.

PhotosRecent LI mug shotsDataLI crime stats

About an hour-and-a-half later, at 1:30 p.m., Sandro Vargas, 41, of Coram, was driving his 1990 Buick eastbound on Middle Country Road in Selden with his 7-year-old son in the car, when he attempted to go around another vehicle, but sideswiped that car in the rear, Suffolk County police said.

The 7-year-old boy, who was not identified, was taken to Stony Brook University Hospital complaining of pain, and was later released to a family member, police said. There were no other injuries.

Sixth Squad detectives charged Vargas with aggravated driving while impaired by drugs with a child, a felony under Leandra's Law, as well as endangering the welfare of a child and seventh-degree criminal possession of a controlled substance.

advertisement | advertise on newsday

Vargas is scheduled to be arraigned Friday in First District Court in Central Islip.

Suffolk authorities have made more arrests than any other county in the state under Leandra's Law, which was enacted in 2009, according to state records.

Since the law's inception, Suffolk has made 384 arrests for "aggravated DWI with a child," according to data from the state Division of Criminal Justice Services.

Nassau had 185 arrests during the period -- the fifth-highest number of any county in the state. Queens County, which had more Leandra's Law arrests than any other New York City borough, was eighth in the state with 153.

There were 4,277 arrests statewide between 2009 and 2014, with Suffolk ranking first in each of those years.