diff --git a/src/ranap_msg_factory.h b/src/ranap_msg_factory.h
index e48b1bf..810bee5 100644
--- a/src/ranap_msg_factory.h
+++ b/src/ranap_msg_factory.h
@@ -39,3 +39,9 @@
 struct msgb *ranap_new_msg_initial_ue(uint32_t conn_id, int is_ps,
 				     RANAP_GlobalRNC_ID_t *rnc_id,
 				     uint8_t *nas_pdu, unsigned int nas_len);
+
+/*! \brief generate RANAP IU RELEASE REQUEST message */
+struct msgb *ranap_new_msg_iu_rel_req(const RANAP_Cause_t *cause);
+
+/*! \brief generate RANAP RAB RELEASE REQUEST message */
+struct msgb *ranap_new_msg_rab_rel_req(uint8_t rab_id, const RANAP_Cause_t *cause);