The newspapers filed complaints with the Prosecutor-General's Office and the Supreme Court in Almaty today.
They are protesting a decision by Kazakh officials on February 1 to impound the editions of five opposition and independent newspapers because they contained allegations by former Kazakh banker Mukhtar Ablyazov of serious corruption by Timur Kulibaev, President Nursultan Nazarbaev's son-in-law.
Ablyazov, who left Kazakhstan for London last year after his BTA bank was taken over by the government, alleged in statements printed by the newspapers that Kulibaev illegally obtained tens of millions of dollars in a deal with the Chinese National Petroleum Corporation several years ago.
Ablyazov announced today on websites that he has sent documents to Kazakhstan's Prosecutor-General's Office, parliament members, and political parties urging them to initiate investigations into his claims about Kulibaev.
The Organization for Security and Cooperation in Europe's media-freedom representative, Miklos Haraszti, criticized today what he called the "misuse" of libel laws to muzzle the press in Kazakhstan and Tajikistan. Haraszti specifically mentioned the confiscation of the five newspapers last week.