public static function deleteRiverObject($event, $type, $river) {
		$ia = elgg_set_ignore_access(true);

		$guid = InteractionsCache::getInstance()->getGuidFromRiverId($river->id);
		if ($guid) {
			$object = get_entity($guid);
			if ($object) {
				$object->delete();
			}
		}

		elgg_set_ignore_access($ia);
	}