P215 CEEFAX 215 Mon 10 Nov 21:13/28       The British Govjrnmjnt is to seek more information from Israel over the arrest of an Israeli nuclear technician. Israel admitted yesterday that it was holding Mr Mordechai Vanunu, who had given details of Israel's nuclear arms to the Sunday Times newspaper. He was last seen at a London hotel on September 30, but Israel is djnzing suggestions that it was involved in the kjdnbp of Mr Vanunu. Now the British ambassador to Israel, Mr William Square, has been told to kit more details from Israeli authorities. News index 102/202 Newsreel 119/219