Beirut - Israeli planes violated Lebanese airspace Saturday and dumped green balloons over the southern port city of Tyre, Lebanese security sources said.

Lebanese troops cordoned off the area around the coast of Tyre and prevented people from touching the 'suspicious balloons' after reports indicated that some people were poisoned when they did.

According to a hospital source in Nabatiyeh, similar green balloons were dropped over the market-town of Nabatiyeh, 54 kilometres south of Beirut.

Five people suffering from nausea and dizziness were brought into hospital after they touched the 'suspicious green balloons,' the source said.

Israel violates Lebanese airspace on a daily basis despite the fact that the attacks on Israel from southern Lebanon by the radical Hezbollah movement have stopped after a beefed-up UN force along with the Lebanese Army were deployed to the area in accordance with a UN resolution.