A ground stop is in place at San Diego Airport following reports that a gunman is in the area.
The armed suspect is barricaded in an apartment near the airport and has fired a number of shots, CNBC is reporting.
Police told the media outlet there haven't been any injuries.
Footage posted on Twitter shows a number of armed policemen gathering around the San Diego apartment complex.
Police threw gas deterrent inside the apartment where the suspected gunman was allegedly shooting from.
A nearby school is in lockdown, the San Diego Police Department tweeted.