Index: src/vehicle.cpp
===================================================================
--- src/vehicle.cpp	(revision 14262)
+++ src/vehicle.cpp	(working copy)
@@ -252,6 +252,19 @@
 	}
 
 	FOR_ALL_VEHICLES(v) {
+		if (v->type == VEH_DISASTER && !HasBit(1<<0 | 1<<2 | 1<<4 | 1<<6 | 1<<9 | 1<<11 | 1<<13 | 1<<14, v->subtype) && v->Previous() == NULL) {
+			if (v->next != NULL) {
+				v->next->previous = v->next->first = v->next;
+				for (Vehicle *u = v->next->next; u != NULL; u = u->next) {
+					u->first = v->next;
+				}
+				v->next = NULL;
+			}
+			new (v->index) InvalidVehicle();
+		}
+	}
+
+	FOR_ALL_VEHICLES(v) {
 		assert(v->first != NULL);
 
 		if (v->type == VEH_TRAIN && (IsFrontEngine(v) || IsFreeWagon(v))) {