(CNN) The governor of Nairobi has ordered an investigation after he visited a hospital in the Kenyan capital and found 12 dead babies stuffed in boxes and plastic bags.

Gov. Mike Sonko said he went to the Pumwani Maternity Hospital on Monday after he received reports of negligence and of employees carrying bodies from hospital rooms.

"During the impromptu visit, I uncovered 12 bodies of infants who died at the hospital mysteriously and their bodies hidden in boxes and paper bags inside a room," Sonko said in a statement.

The visit was captured on video

In a confrontation Sonko captured on video and shared online, the governor stormed into the hospital and demanded to know how many children died that day. A hospital employee told him only one has died since Friday, but the governor said he's been told the number is higher.

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