Add point from an other file in an existing graph

It's a graph made with ggplot

this is the code I used to make the graph

ggplot(LE_01, aes(x = X, y = Y, label=NO_ARBRE)) + 
 geom_point() +
 geom_text(aes(label= NO_ARBRE),hjust= 0, vjust= 0) +
 ggtitle("LE_01")

Is it possible to add point from another df which are related to the point already in the graph ?

Thanks for the help