However, three other former leaders of Karabakh have arrived safely in Armenia, the Armenian state news agency Armenpress quoted one of the three as saying.
Almost all the 120,000 or so inhabitants of Karabakh have since fled to Armenia, fearing for their safety.
However, former state minister Artur Arutyunyan, ex-interior minister Karen Sarkisyan and the former head of Karabakh's security service, Ararat Melkunyan, all entered Armenia on Tuesday, Artur Arutyunyan said, according to Armenpress.
Karabakh is viewed internationally as part of Azerbaijan but had been run as a breakaway ethnic Armenian statelet since the 1990s following the collapse of the Soviet Union.
Reporting by Reuters; Writing by Kevin Liffey; Editing by Alison Williams and Gareth JonesOur Standards: The Thomson Reuters Trust Principles.
Persons:
Aziz Karimov, Armenpress, Ruben Vardanyan, Levon Mnatsakanyan, Arkady Gukasyan, Bako, Araik, David Ishkhanyan, Artur Arutyunyan, Karen Sarkisyan, Kevin Liffey, Alison Williams, Gareth Jones
Organizations:
REUTERS, Azerbaijan's State Security Service, Press Agency, Soviet Union, Reuters, Thomson
Locations:
Stepanakert, Azerbaijan, Nagorno, Karabakh, Azerbaijan's, Baku, Armenia, Ararat Melkunyan, Armenpress, Soviet