The letter of resignation was to have been presented to the 75-member legislature Tuesday. Deputies also planned to watch a resignation speech videotaped by Mr. Akayev in Moscow, but the parliamentary delegation that traveled to the Russian capital failed to show up.
Officials say the parliament session has been rescheduled for Wednesday.
In a sign of how unstable Kyrgyzstan remains, a top anti-corruption officer was gunned down early Tuesday outside his house in the southern city of Osh.
Some information for this report provided by AP, AFP and Reuters.