Celebrated law professor Patrick Lumumba was on Saturday denied entry to Zambia, authorities from the South African nation have reported.

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Lumumba, who is also the director of Kenya School of Law, was turned away at Kenneth Kaunda International Airport minutes after landing.

He was expected to deliver a speech on China's influence in African continent at Eden University on Sunday but authorities insisted that they turned him back due to 'security concerns'.

"The government through the immigration department has denied entry into Zambia of Prof Patrick Lumumba, a Kenyan national, due to security considerations," Information and Broadcasting Minister Dora Siliya said in a tweet.

“Immigration is a security wing working with agencies within and beyond Zambia,” the minister said.

Prof Lumumba's planned talk entitled "Africa in the age of China influence and global geo dynamics" followed growing anger at Beijing's grip on the economy of the southern African nation.

His deportation comes at the time Kenyans are accusing government of over-borrowing from the communist state, which has literally taken control of Africa's economy.

On social media, Photoshop pictures of a Chinese-Uhuru Kenyatta have been trending with Kenyans accusing him of taking a 'wrong path' by over-borrowing from China.

Lumumba, a critic of 'kleptocratic' African leaders, presented IIEBC in 2017 presidential petition which he lost.