SAN JOSE (KRON) — In San Jose, City Hall is the new frontline in the ongoing war against graffiti and taggers.

The sprawling complex at Fourth and East Santa Clara streets has been defaced with tags for several weeks now.

The graffiti is thought to be gang-related.

At first, it was happening about once a week, but lately, the building is being hit on a nightly basis.

Surveillance video has been turned over to the police and extra security measures, such as more lighting and nighttime patrols, are under consideration.