LUSAKA -- Zambia on Wednesday marked the 54th anniversary of its independence with a call by the country's leader for citizens to liberate themselves from a poor work culture, a negative mindset and other factors that hinder national development.

The main event, held in Lusaka, the country's capital, started with a wreath-laying ceremony at the Freedom Statue in honor of people who perished in the struggle for independence.

President Edgar Lungu, with his guest Zimbabwean President Emmerson Mnangangwa, led senior government leaders and diplomats in laying wreaths in honor of the fallen heroes at the ceremony that was accompanied by solemn music.

The event later moved to the State House, where people who have contributed to the development of the country in various fields were honored. The guests were treated to entertainment by various cultural groups and musicians.

In a televised address, Lungu called for hard work, unity and determination among citizens to chart the future they wanted and deserve.

"Independence is a continuous process of liberating ourselves from factors which hold us back as a nation. We need to assert ourselves and be confident in our ability to transform our country," he said.

Factors that hinder national development include poor work culture, low self-esteem and a negative mindset, Lungu said, adding that the independence gained in 1964 was not an end in itself but the beginning of a journey toward a shared future of unity, development and prosperity.

The country needs to reinforce the positive values espoused by founding fathers based on traditional values and principles, he said, adding that the country's rich cultural heritage needs to be preserved.

Zambia gained independence from British colonial rule on Oct 24, 1964.