Former U.N. Secretary-General Boutros Boutros-Ghali (search) was hospitalized after collapsing at a conference in Monaco on Saturday, authorities and colleagues said.
Boutros-Ghali, 82, was secretary-general between 1992 and 1996.
"He was about to sit down at the lunch table when he suddenly collapsed," said Claude de Kemoularia, who co-chairs with Boutros-Ghali the Monaco Club (search), a political studies institute that was holding its annual meeting this weekend.
Kemoularia, reached by telephone from Paris, said doctors believe the problem was caused by an "unexpected drop in blood pressure" and that he was doing better after being rushed to the hospital.
"The impression we have is that he's not in danger," said Kemoularia, a former French ambassador to the United Nations (search).