SAN FRANCISCO (KRON) — There was a heavy police presence at a Chase Bank in San Francisco on Monday after a man armed with knives entered the building, according to the San Francisco Police Department.

Police said the man entered the bank, located at 1720 Fulton St, and instigated a verbal altercation with employees. He then brandished knives, causing the employees to “(shelter) in place for safety,” SFPD said.

Officers were called to the scene at about 1:40 p.m. The suspect was ordered to leave the bank but refused, police said.

The San Francisco Department of Emergency Management sent out an alert to the public at 2:21 p.m. Monday regarding police activity at the bank.

Police deployed tear gas, and smoke came from the building, per a KRON4 reporter at the scene. At about 5:15 p.m., the suspect was arrested, per SFPD. The suspect was taken out of the bank on a stretcher.

The suspect was hospitalized for precautionary reasons. They may be charged with aggravated assault and resisting arrest.

An officer suffered non-life-threatening injuries during the incident.

There was also police activity near Laguna Street and Geary Boulevard in San Francisco on Monday afternoon. A driver was fatally shot by police after crashing into the Chinese Consulate building.

This is a developing story. Stick with KRON4 for updates.