How do I stop player from moving after teleport?

I’m trying to make the player teleport back to the start when it falls off (hits a box collider below). It teleports sucessfully but the player is still moving. How do I solve this? (I’m using charactercontroller btw)

Here’s my script:

public class PlayerSwipeControl : MonoBehaviour {

    public Swipe swipeControls;
    public Transform plr;
    private Vector3 desiredPosition;
    private CharacterController controller;
    private Vector3 startPos;
    // Update is called once per frame
    private void Start()
    {
        desiredPosition = plr.transform.position;
        controller = plr.GetComponent<CharacterController>();
        startPos = plr.transform.position;
    }
    private void FixedUpdate ()
    {
        if (swipeControls.SwipeLeft)
            desiredPosition += Vector3.left * 20;
        if (swipeControls.SwipeRight)
            desiredPosition += Vector3.right * 20;
        if (swipeControls.SwipeUp)
            desiredPosition += Vector3.forward * 20;
        if (swipeControls.SwipeDown)
            desiredPosition += Vector3.back * 20;
        

        var dir = desiredPosition - plr.transform.position;
        var movement = dir.normalized * 25f * Time.deltaTime;
        var gravity = 9.8f;
        var gravityfps = 0f;
        gravityfps -= gravity * Time.deltaTime;
        movement.y = gravityfps;
        if (movement.magnitude > dir.magnitude)
        movement = dir;

        

        controller.Move(movement);
	}



    private void OnControllerColliderHit(ControllerColliderHit hit)
    {
        if(hit.gameObject.tag == "death")
        {
            Debug.Log("die");
            plr.transform.position = new Vector3(-2.66f, 2.017f, -10f);
        }
        Debug.Log(hit.collider.name);
    }
}

ok nvm i fixed it myself.
in my case the desiredPosition is still from whenever i swiped.
so it will still try to keep moving to the target position.

so to fix it I changed it to:

if(hit.gameObject.tag == "death")
         {
             Debug.Log("die");
             plr.transform.position = new Vector3(-2.66f, 2.017f, -10f);
             desiredPosition = plr.transform.position;
         }