The Venezuelan opposition leader María Corina Machado is “safe” and “will be” in Oslo after “a journey in a situation of extreme danger,” although she will not attend the Nobel peace prize ceremony this afternoon, organisers have said.

Machado has been seen only once in public since going into hiding in August last year amid a tense showdown with the president, Nicolás Maduro. Venezuela’s attorney general has said Machado, 58, would be considered a “fugitive” if she left the country to accept the award.