DENOUNCE SHELLINGTOKYO. .JAPAN iSATUR- ' DAY) iAIM — North Vietnam 1 today denounced as ‘‘cscala- . tion shelling of its territory lt;1 by U.S. long-range artillery bascft in South Vietnam. Ua- . noi's Vietnam News Agency, monitored in Tokyo, said the shelling “is another flagrant j act of war escalation of (he ; U.S. aggressors against North i( Vietnam in violation of the ' 1954 Geneva agreements.11