![Fire crews were battling the Border 65 Fire near the US-Mexico border on July 28, 2024. (Cal Fire/San Diego County Fire)](https://media.nbcsandiego.com/2024/07/border-65-fire-outside.jpg?quality=85&strip=all&resize=320%2C180)
San Diego County firefighters are battling a vegetation fire on Sunday afternoon in Marron Valley near the U.S.-Mexico border burning quickly and threatening structures.
By about 5:47 p.m. Sunday, crews stopped the fire's (called the Border 65 Fire) forward rate of spread at 90 acres and had 5% containment. By Monday, it was at 61 acres and 50% contained.
At one point, a large plume of smoke could be seen on AlertCalifornia wildfire cameras rising from where the fire broke out.
This is a developing story and NBC 7's digital team will continue to update this page as more information arrives into the newsroom.
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![A brush fire was burning near the US-Mexico border](https://media.nbcsandiego.com/2024/07/BORDER-65-FIRE.jpg?quality=85&strip=all&resize=218%2C123)