The army continues its search, which began late yesterday morning, for four Palestinians who were smuggled into Israel-proper yesterday from Gaza. One of them is thought to be in the Be\'er Sheva area, and the others are in Lachish. Herzl Mantin, of the Negev town of Shuva - between Netivot and Gaza - was remanded today for six days. The 50-year-old man is suspected of smuggling the four for 2,000 shekels; he claims he did not know that they might be planning an attack. The entry of the four, who have terrorist backgrounds, led to a high alert throughout the south, and the remanding judge acknowledged the official suspicion that they would attempt to carry out terrorist attacks. The judge was presented with secret intelligence information on the background of the four. Terrorism warnings have been received in other areas in the country as well.