Ex-Microsoft executive Bill Henningsgaard and his son Max died Friday in a plane crash in East Haven, Connecticut, where two children, ages 1 and 13, on the ground were also killed, officials said.

Henningsgaard's plane crashed as it approached an airport, and authorities said they believe two children ages 1 and 13 were killed in one of the homes, while their mother survived, The Daily Astorian reported.

The Seattle-based pilot was the son of former Astoria Mayor Edith Henningsgaard-Miller and brother of City Attorney Blair Henningsgaard.

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Connecticut Gov. Dannel P. Malloy said crews working at the scene of the plane crash in East Haven have seen two victims' bodies, but neither has been recovered. The third victim has not been discovered, but is feared dead.

The missing include the one person on the plane and two children in a house, ages 1 and 13, East Haven Mayor Joseph Maturo said, according to CTPost reports.

“We haven’t recovered anybody at this point and we presume there is going to be a very bad outcome,” East Haven Fire Chief Douglas Jackson said early Friday afternoon, the CBS New York reports.

A small plane originating from New Jersey crashed into two homes in East Haven late Friday morning at 11:25 a.m, engulfing both houses on fire.

The addresses of the homes that were struck are 64 and 68 Charter Oak Ave. Both homes are seriously damaged. The incident happened near the Tweed New Haven Airport.

The children’s mother is on scene and is being consoled by authorities as well as her priest.

“There are reports that two children were in the house, there are reports that there are one to three people in the plane,” Malloy said. “So far, on a visual inspection only, we’ve been able to identify two bodies and the rest of it will have to play itself out in the hours to come.”

“We are doing everything we possibly can for the mom who is here with her priest and family,” Mayor Joseph Maturo said.

Federal Aviation Administration (FAA) released the following statement:

"A Rockwell International Turbo Commander 690B, a multi-engine turbo prop aircraft, crashed on approach into the Tweed New Haven Airport. CT at 11:25 a.m. today. The flight originated from Teterboro Airport, NJ. The FAA is investigating.”