The facility houses Atlantic Television and Wish FM in the Ozuoba area of Port Harcourt, the capital of Rivers.
Chinyere Igwe, the owner of the media outfit, confirmed the attack to TheCable.
The incident was said to have occurred on Tuesday night.
The gunmen were said to have attacked the complex with improvised explosive devices (IEDs).
There was no casualty recorded as of the time of filing this report.
Igwe is a member of the house of representatives representing Port Harcourt II federal constituency of Rivers state. He is a supporter of Atiku Abubakar, the presidential candidate of the PDP.
In 2022, the Rivers state government sealed off a filling station belonging to the lawmaker over allegations of involvement in criminal activities.
Grace Iringe-Koko, police spokesperson in Rivers, was not immediately available for comments on the attack.
Calls and text messages to her mobile phone were not answered or replied to.