"The intended target was not present," said police news affairs officer John Mirabelli, but two young children were taken from the residence.
Just after midnight, cops executed a warrant at a home on the 7400 block of South Lafayette Ave. in Englewood.
There, they found what Mirabelli described as a "quite sophisticated" drug cultivation operation.
More than 200 marijuana plants, ranging from mere inches to over 5 feet tall, were seized in the raid, he said, adding that the residence was equipped with an irrigation and ventilation system as well as indoor growing lights.
Officers also said they collected a bulletproof vest and an unspecified weapon from the premises.
No further details on the ages of the children or whether their parents were present during the raid were disclosed.
The street value of seized cannabis is yet to be determined.