1124 GMT: Security Services have searched the home of the deputy chairman of the United Civil Party, Anatoly Lebedko.
Lebedko is in the KGB prison and is reportedly on hunger strike.
1120 GMT: On Wednesday at 9:30 a.m., a court will hear complaints by lawyers for detainees held by the state security service KGB.
Meanwhile, Presidential candidate Vitaly Rymashevsky was interrogated on Monday, with his lawyer managing to meet with him for a second time.
0730 GMT: Presidential candidate Vladimir Neklayev, beaten in the Election Day demonstrations of 19 December and then taken by security forces from his hospital bed, was finally allowed a visit from his lawyer on Monday afternoon.
Neklyaev's morale was "good", according to his lawyer Tamara Sidorenko; however, she added that Neklyaev was complaining of headaches and high blood pressure and "his face remains a huge bruise". Sidorenko said the Government must charge or release her client by Thursday.