Django - Load static files from another app

Question

In app1 I am trying to load static files from app2. I set no STATICFILES_FINDERS in project settings.py, which means, Django will use default AppDirectoriesFinder when it finds static subdirectory inside app directory.

Problem:

In template files of app1, I can generate urls of static files for app1 very easily. But if I want app1 template files to generate urls for static files of app2, links are not working. How can I in app1 generate static files of app2?

App1 template file:

{% load static %}
<img src="{% static "app1/example.jpg" %}"> <!-- ok -->
<img src="{% static "app2/example.jpg" %}"> <!-- link broken -->

HTML Output:

<img src="http://localhost:8000/static/app1/example.jpg">
<img src="http://localhost:8000/static/app2/example.jpg">