India, Sept. 12 -- The White House is tightening the security cover of US President Donald Trump following the killing of conservative activist Charlie Kirk.

According to the reports by the Wall Street Journal and CNN, a Pentagon ceremony to mark the anniversary of the September 11, 2001, attacks was moved to a more secure location, while additional measures will be in place when Trump attends a Yankee game Thursday evening in New York, according to the report.

The 9/11 memorial ceremony that Trump attended on Thursday was moved from the Pentagon's traditional site outside the building walls to an internal courtyard.

The report also said that additional security measures have been initiated for Trump's visit to Yankee Stadium later on ...