Now when they were going, behold, some of the watch came into the city, and shewed unto the chief priests all the things that were done. Some of the watch - Or guards. Probably the rest still remained at the tomb, waiting for orders to depart, and had sent these to intimate to their employers the things that had taken place.
Related Commentaries of Matthew 28:11
Matthew 28:11
11 Now when they were going, behold, some of the watch came into the city, and shewed unto the chief priests all the things that were done.