diff --git a/addons/point_of_sale/i18n/point_of_sale.pot b/addons/point_of_sale/i18n/point_of_sale.pot
index 84f63b19b28..53817395097 100644
--- a/addons/point_of_sale/i18n/point_of_sale.pot
+++ b/addons/point_of_sale/i18n/point_of_sale.pot
@@ -5110,6 +5110,12 @@ msgstr ""
 msgid "You cannot create a session before the accounting lock date."
 msgstr ""
 
+#. module: point_of_sale
+#: code:addons/point_of_sale/models/account_bank_statement.py:0
+#, python-format
+msgid "You cannot delete a bank statement used in an open Point of Sale session."
+msgstr ""
+
 #. module: point_of_sale
 #: code:addons/point_of_sale/models/product.py:0
 #: code:addons/point_of_sale/models/product.py:0
diff --git a/addons/point_of_sale/models/account_bank_statement.py b/addons/point_of_sale/models/account_bank_statement.py
index 94e2af6be39..33533b8379d 100644
--- a/addons/point_of_sale/models/account_bank_statement.py
+++ b/addons/point_of_sale/models/account_bank_statement.py
@@ -17,6 +17,11 @@ class AccountBankStatement(models.Model):
                 raise UserError(_("You can't validate a bank statement that is used in an opened Session of a Point of Sale."))
         return super(AccountBankStatement, self).check_confirm_bank()
 
+    def unlink(self):
+        for bs in self:
+            if bs.pos_session_id:
+                raise UserError(_("You cannot delete a bank statement used in an open Point of Sale session."))
+        return super( AccountBankStatement, self).unlink()
 
 class AccountBankStatementLine(models.Model):
     _inherit = 'account.bank.statement.line'