Extra objects keep appearing in scene view

I created an object that spawns when the player dies. This object reloads the level, but for some reason everytime after I exit play mode, there is a clone of it in the scene hierarchy. It's really annoying and I have no idea why it's happening. Here's the code for the death object:

 using UnityEngine;
 using System.Collections;
 
 public class Death: MonoBehaviour {
     public float deathDelay;
     // Use this for initialization
     void Start () {
         StartCoroutine (DeathCoroutine ());
 
         //Debug.Log (GameObject.FindGameObjectsWithTag("Hero"));
     }
     
     // Update is called once per frame
     void Update () {    


     }
     IEnumerator DeathCoroutine(){
         yield return new WaitForSeconds (deathDelay);
         Application.LoadLevel (Application.loadedLevelName);
     }
 }
 Here's the code for the object that spawns it:
 using UnityEngine;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour {
     
     public float speed;
     public float dodge;
     public int dodgeCharge;
     public int coolDown;
     public GameObject Death;
     private Rigidbody2D rb;
     //private Component death;
     void Start ()
     {    
     }
     void OnDestroy(){
         
         Instantiate (Death);
         
     }
 
 
 }