Take them out now.
The video will discuss several methods of elimination of ants you can use. There are some that are more effective in comparison to others. You could use this video to provide you with a clear concept of what methods are worth pursuing. The first step is an ant poisoning. It is possible to use it by spraying directly onto the hill of ants. Also, you can make use of a hose for spraying the ants off or wrap their nests, and then dispose of the nests. Safety is important.