SAN ANTONIO – Two people were killed and five others were hospitalized after a shooting at a downtown bar Sunday night, according to San Antonio police.

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The shooting happened during a concert around 8 p.m. at Ventura, a live music venue and bar, Police Chief William McManus said.

Ventura is located at 1011 Avenue B along the River Walk in the Museum Reach.

An argument broke out inside of the club between a group of individuals and one person pulled out a gun and started shooting, McManus said.

One of the victims killed was a 21-year-old male who was found dead inside of the club. The other victim died outside the club from critical injuries.

Police say they are unsure if it was a targeted shooting, but the victims were patrons. No one that works at the bar was shot at or injured, McManus said.

A witness on scene told us he heard multiple gunshots from inside the bar.

This is a developing story. Check back on KSAT.com later for more information.