The United States on Friday imposed sanctions on Hong Kong Chief Executive Carrie Lam, the territory’s current and former police chiefs and eight other top officials for what Washington says is their role in curtailing political freedoms in the territory.

The sanctions were imposed under an executive order President Donald Trump signed last month to punish China for its moves against dissent in Hong Kong and are the latest dramatic action by his administration against Beijing in the run-up to his November re-election bid.