BBC.com report indicated that the party plans to hold protests ahead of the democracy summit being hosted in the capital, Lusaka.
Kamala Harris is expected to arrive in the southern Africa country on Friday and is scheduled to make an address at the summit – which is jointly being hosted by Zambia, the US, Costa Rica, the Netherlands and South Korea.
Also, about 50 Members of Parliament have alleged that the event is part of an agenda to impose gay rights on Zambians.
Amnesty International Zambia has called on the government to take a strong stand in support of LGBTQ rights and to ensure that the summit is not disrupted by protests.
Security Minister Jack Mwiimbu has said that the authorities would not allow lawlessness during the summit.
Meanwhile, the Vice President is currently in Ghana for a three-day visit.