The presidents of Georgia and Poland say they came under fire tonight from Russian troops in South Ossetia on their way to visit a refugee camp.
Russia has denied its soldiers were involved, but eyewitnesses say shots were fired in the air by checkpoint guards as the presidential convoy approached.
The incident took place at the Akhalgori frontier post, which is regularly visited by western ceasefire observers. Georgian President Mikheil Saakashvili said there could have been no doubt the motorcade was an official one, and said the shots were inexplicable.
Polish President Lech Kaczyinski was asked how he knew the shots had come from Russian troops, and he answered he had heard shouts in Russian, and been assured from various sources that Russian troops had not withdrawn from several border positions.
There is some confusion over the incident, and it should be underlined that both Russian and Georgian are widely spoken throughout South Ossetia.