UPND President Hakainde Hichilema and Vice President Geoffrey Mwamba have been arrested by police in Luanshya.
The two have been arrested on grounds that they blocked roads when they visited UPND members incarcerated at Kamfinsa prison last week.
They were summoned by Luanshya Police for interrogation after Mpongwe District Commissioner Keith Maila made a formal complaint to police that Mr Hichilema and Mr Mwamba were holding a meeting in Mpongwe without a permit.
This is after the two leaders were denied entry into Kamfinsa prison last week where they had gone to visit some incarcerated UPND officials.
And there was some confusion in Luanshya this afternoon after some PF cadres invaded Luanshya Police station where Mr Hichilema and Mr Mwamba are being questioned.
The PF cadres attacked some UPND members who were gathered at the police station to offer solidarity to their leaders and told the UPND cadres to leave Luanshya stating that Copperbelt is not southern province.