LIVONIA, Mich. (WOOD) — The metro Detroit twins for whom an Amber Alert had been issued were delivered safely to police Monday morning.

The Livonia Police Department started looking for the 14-day-old twin boys after they were reported missing from a hotel Sunday night. Their mother said she left the babies with two friends and they were gone when she returned, police said.

An Amber Alert was issued Monday morning. Detroit police said the babies were dropped off safely at a precinct around 9:30 a.m. Monday. Police would not say who brought the babies into the precinct, citing the ongoing investigation.

The twins were taken to the hospital to be checked out but were in good condition, police said.

Police said no one was in custody as of Monday morning. Livonia police couldn’t comment on why the babies were abducted but said more information would likely be available later.