By Wednesday night, the story of a fire at a Sudanese army munitions depot had morphed into an incendiary allegation that Israel had attacked.

Sudan's information minister claimed it was the fourth such air strike by Israel, which has not been in Khartoum's good books since supporting anti-government rebels in the country's two-decade civil war.

Israel, meanwhile, accuses Sudan of supplying weapons to the armed Palestinian movement Hamas.

Now, Sudan is talking darkly about relatiation, as Al Jazeera's Harriet Martin reports from Khartoum.