A number of tenants of a high-end office block in Myanmar that the United Nations said is built on military-owned land have moved out or are reviewing their leases, including McKinsey, Coca-Cola and Reuters, the companies said.

Activist group Justice for Myanmar last month called on commercial tenants of the Sule Square complex of offices and shops in the heart of Myanmar's commercial hub of Yangon to stop indirectly supporting the army.

"Sule Square has big-name tenants that continue to lease office space in the building, indirectly supporting the army," Justice for Myanmar said in a report in which it identified 18 of the tenants.