Nigeria, Feb. 21 -- For the second time in less than three weeks, thousands of Venezuelans have taken to the streets of Caracas, the country's capital, to protest the prolonged detention of Alex Saab, the country's diplomat.

Mr Saab, an ally of President Nicolas Maduro of Venezuela, was arrested by the Cape Verdean authority in June 2020, when his flight had a stopover at the island's airport in Sal.

He was on a humanitarian mission to Iran on behalf of Mr Maduro-led government.

The protesters, numbering hundreds, had on January 31, protested on the same course but also challenged the leadership of Mr Maduro.

In the latest development, the protesters shifted the demonstration to the Venezuelan office of the Nigerian Embassy to registe...