OUAGADOUGOU, March 21 (Xinhua) -- Burkina Faso's Minister of Mines and Quarries Oumarou Idani has tested positive for COVID-19, bringing the total number of infected ministers in the country to four, according to a statement on Friday.

Idani tested positive after leading a delegation to visit Canada, said the statement, adding that one of the representatives in the delegation was from the presidency.

So far, he is in stable condition and under home isolation, said the statement.

Idani has become the country's fourth minister declared to be infected by COVID-19. The education minister, territorial administration minister and foreign minister also tested positive on Friday.

Burkina Faso reported its first confirmed COVID-19 case on March 9, and the number has reached 40 to date.

President Roch Marc Christian Kabore on Friday evening announced a curfew throughout the territory from 7 p.m. (1900 GMT) to 5 a.m. (0500 GMT), and a closure of land, air and rail borders. These measures will become effective from midnight Saturday.