The attack was reported by the Government radio, but not until late that night.
The Government radio said the authorities would release about 200 people who have been arrested in violence in the last two weeks.
The list of invalid candidacies was read on Government radio without further elaboration.
The issue was raised again today by Thomas Falke, head of the party organization, on the official Government radio.
The Government radio said the conspirators had intended to overthrow the Government.
The Government radio reported that five people were killed and four wounded today in rocket attacks by guerrillas.
The Government radio here said one helicopter was shot down and that it crashed into the Mediterranean Sea.
Bosnian Government radio said children were victims because they had been out playing in the fine weather.
The Government radio said the convoy of 229 vehicles carried 1,398 tons of supplies to the city.
The Government radio said 30 people were killed in battles but others put the figure as high as 100.