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DALLAS (CBSDFW.COM) — A Dallas fire truck and a police car were involved in separate car accidents early Saturday morning.

Police say the first crash, which involved the fire truck, happened just before 1 a.m. on the Dallas North Tollway at Mockingbird Lane.

(Credit: Colton Johnson/Dallas Police)

(Credit: Colton Johnson/Dallas Police)

After police helped Dallas Fire Rescue close the tollway for an investigation, a police car that was blocking traffic was hit, according to a tweet from Colton Johnson, public information officer for Dallas police.

Three people were arrested after the accidents, and there were no injuries, Johnson tweeted.

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