diff --git a/msc_tests/MSC_Tests.ttcn b/msc_tests/MSC_Tests.ttcn
index 0fad797..9cf6ce5 100644
--- a/msc_tests/MSC_Tests.ttcn
+++ b/msc_tests/MSC_Tests.ttcn
@@ -620,6 +620,36 @@
 	vc_conn.done;
 }
 
+/* Test LU but BSC will send a clear request in the middle */
+private function f_tc_lu_disconnect(charstring id, BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
+	g_pars := pars;
+
+	var PDU_ML3_MS_NW l3_lu := f_build_lu_imsi(g_pars.imsi)
+	var PDU_DTAP_MT dtap_mt;
+
+	/* tell GSUP dispatcher to send this IMSI to us */
+	f_create_gsup_expect(hex2str(g_pars.imsi));
+
+	/* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */
+	f_bssap_compl_l3(l3_lu);
+
+	/* Send Early Classmark, just for the fun of it */
+	BSSAP.send(ts_BSSMAP_ClassmarkUpd(g_pars.cm2, g_pars.cm3));
+
+	f_sleep(1.0);
+	/* send clear request in the middle of the LU */
+	BSSAP.send(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_REQ);
+	setverdict(pass);
+}
+testcase TC_lu_disconnect() runs on MTC_CT {
+	var BSC_ConnHdlr vc_conn;
+	f_init();
+
+	vc_conn := f_start_handler(refers(f_tc_lu_disconnect), testcasename(), 9);
+	vc_conn.done;
+}
+
+
 /* Test LU but with illegal mobile identity type = IMEI */
 private function f_tc_lu_by_imei(charstring id, BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
 	g_pars := pars;