HOUSTON -

An argument over a woman at a cigar shop in northwest Harris County escalated to a shooting, deputies said.

The Harris County Sheriff's Office said the woman's ex-husband and new boyfriend started fighting inside the Serious Cigars shop on FM 1960 Tuesday night. 

Investigators said one of the men left the store, retrieved a gun from his vehicle, and shot the other man twice -- in the hand and the side. 

The victim was flown to Memorial Hermann Hospital in critical condition.

Deputies took the shooter into custody at the scene.

As of Wednesday morning, investigators said it's unclear whether he will face charges.

Names of those involved were not immediately released.