New Delhi, April 3 -- U.S. Secretary of State Marco Rubio on Thursday accused China of "bullying" by detaining or holding up dozens of Panama-flagged ships - though for a short period of time - after the Central American country seized control of two critical ports on the Panama Canal earlier this year from a subsidiary of a Hong Kong-based company.

China denies the allegations. Panama has been caught in a broader rivalry between the United States and China after U.S. President Donald Trump accused Beijing last year of running the Panama Canal. The Trump administration sees the critical maritime trade route as strategically important, both commercially and militarily, and Trump has talked about retaking the Panama Canal since his campaig...