Four armed robbers woke up residents in a Monrovia home early Tuesday morning and stole items after they broke in, police said.
The home invasion robbery was reported just before 2 a.m. in the 1000 block of E. Lemon Avenue, according to the Monrovia Police Department.
Police said at leasy two people were inside the home when the robbery occurred.
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Detectives were investigating whether the robbery was related to a recent home invasion in Arcadia, which happened in a similar manner.
It was unclear if anyone was injured and what was taken during the robbery.
Oleevia Woo contributed to this report.