Altercation in front of Pasadena courthouse leads to shooting

A shooting investigation is underway in Pasadena after an altercation in front of the courthouse resulted in shots fired. 

According to city officials, a pedestrian fired shots at a driver around 10:15 a.m. It's unclear how the altercation occurred or if the driver was involved in the altercation. 

Police are searching for the driver; the pedestrian was detained and a weapon was recovered. 

The nearby Westin hotel was on lockdown amid the investigation.