Secretary of State John Kerry won't be attending President-elect Trump's inauguration on Friday, according to the State Department.

"The secretary will not attend the inauguration," a State Department official told the Washington Examiner.

The official had no comment on why Kerry wouldn't attend.

Like many other Cabinet and senior-level Obama administration officials, Kerry has been working with the incoming Trump team to ensure a smooth transition to a new government, even if he isn't a supporter of Trump's agenda.

This week, Kerry said Trump made an "inappropriate" intervention into foreign policy by criticizing German Chancellor Angela Merkel.

"I thought frankly it was inappropriate for a president-elect of the United States to be stepping into the politics of other countries in a quite direct manner," Kerry said.