The IDF on Friday confirmed some of its troops have been operating in Lebanon for days, although no major incursion has been launched.
An official from the UN monitoring force in south Lebanon, speaking on condition of anonymity because he was not authorized to talk to the media, told The Associated Press in Beirut that between 300 and 500 troops are believed to be in the western sector of the border, backed by as many as 30 tanks.
Fighting is continuing between the Israelis and Hizbullah guerrillas, he said.
An army spokesman confirmed its troops were operating in Lebanon, but would not say how many.
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