diff --git a/src/dynamic/invalidateincident.php b/src/dynamic/invalidateincident.php
new file mode 100644
index 0000000..ceeeac3
--- /dev/null
+++ b/src/dynamic/invalidateincident.php
@@ -0,0 +1,29 @@
+<?php
+require_once(__DIR__."/../core.php");
+security::checkType(security::ADMIN, security::METHOD_NOTFOUND);
+
+if (!isset($_GET["id"])) {
+  security::notFound();
+}
+
+$id = (int)$_GET["id"];
+
+$incident = incidents::get($id);
+if ($incident === false) security::notFound();
+
+$status = incidents::getStatus($incident);
+if (!in_array($status, incidents::$canInvalidateStates)) security::notFound();
+?>
+
+<form action="doinvalidateincident.php" method="POST" autocomplete="off">
+  <input type="hidden" name="id" value="<?=(int)$id?>">
+  <?php visual::addContinueInput(); ?>
+  <h4 class="mdl-dialog__title">Invalidar incidencia</h4>
+  <div class="mdl-dialog__content">
+    <p>¿Estás seguro que quieres invalidar esta incidencia? <span style="color:#EF5350;font-weight:bold;">Esta acción es irreversible</span></p>
+  </div>
+  <div class="mdl-dialog__actions">
+    <button type="submit" class="mdl-button mdl-js-button mdl-js-ripple-effect mdl-button--accent">Invalidar</button>
+    <button data-dyndialog-close class="mdl-button mdl-js-button mdl-js-ripple-effect cancel">Cancelar</button>
+  </div>
+</form>