diff --git a/INSTALL/INSTALL.ubuntu1604.md b/INSTALL/INSTALL.ubuntu1604.md
index 1cb40e5..5c7a3c4 100644
--- a/INSTALL/INSTALL.ubuntu1604.md
+++ b/INSTALL/INSTALL.ubuntu1604.md
@@ -73,8 +73,6 @@ Clone the repository and invoke `composer` using the shipped `composer.phar`:
 The `self-update` directive is to ensure you have an up-to-date `composer.phar`
 available.
 
-![Arbo](pictures/arbo1.png "Arbo")
-
 
 ### Backend
 
@@ -94,9 +92,6 @@ There are 2 parts:
 * MonarcCore is common to the front office and to the back office.
 
 
-![Arbo](pictures/arbo2.png "Arbo")
-
-
 ### Frontend
 
 The frontend is an AngularJS application.
@@ -112,9 +107,6 @@ There are 2 parts:
 * one common for front office and back office: ng_anr.
 
 
-![Arbo](pictures/arbo3.png "Arbo")
-
-
 ## Databases
 
 ### Change SQL Mode in my.cnf