HONG KONG — Despite international condemnation of Myanmar’s campaign of violence against the Rohingya people, there have been few calls for a return to the sort of sanctions that were long a part of the country’s relationship with the West.

After a Rohingya militant group attacked police outposts last month, Myanmar’s military, along with vigilante groups, launched a crackdown in the western state of Rakhine, triggering a refugee crisis that has sent more than 400,000 Rohingya fleeing to neighboring Bangladesh.

On Monday, Boris Johnson, Britain’s foreign secretary, led a private discussion of the Rohingya crisis among foreign ministers attending the United Nations General Assembly. Daw Aung San Suu Kyi, the de facto head of Myanmar’s government, last week decided not to attend the General Assembly, where she would probably have drawn a flood of criticism.

Mr. Johnson said nothing about whether the government of Myanmar could face sanctions. In a statement from his office, he called on Ms. Aung San Suu Kyi to take steps to halt the crisis.