Kyrgyzstan's Justice Ministry says four people, including parliament member Tynychbek Akmatbayev, have been killed at a prison near Bishkek after inmates took them hostage.
Interior Minister Murat Sutalinov is at the prison to head negotiations with the inmates. The ministry gave no other details.
It is not clear if the hostage-takers made any demands.
Mr. Akmatbayev was involved in negotiations on Wednesday at another Kyrgyz prison where a riot over poor living conditions forced the staff to evacuate earlier this week.
That prison, also near Bishkek, remained surrounded by security forces on Thursday.
Some information for this report provided by AFP, AP and Reuters.