Donald Trump was booed by tennis fans as he attended the US Open, where the match start time had been delayed due to enhanced security checks.

An ABC television broadcast showed Trump stepping out of a box seat to wave to the still-sparse crowd, but did not include crowd audio.

Cheers and boos were audible during the ESPN feed of a later Trump appearance before the start of the event.

In footage shared on social media the crowd could be heard booing loudly when the US president appeared on screens.

Fans waited in long lines, some for well over an hour, outside Arthur Ashe Stadium in Queens, the largest tennis venue in the world with a nearly 24,000-person capacity.

US Secret Service and other federal security officers checked bags and ushered fans through metal detectors.

Some atten

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