Donald Trump
Donald TrumpReuters

Republican presidential candidate Donald Trump will postpone the announcement on his running mate in the wake of the terrorist attack in Nice, France, he said on Thursday night.

“In light of the horrible attack in Nice, France, I have postponed tomorrow's news conference concerning my Vice Presidential announcement,” he tweeted.

Trump also condemned the attack, in which at least 73 people were killed.

“Another horrific attack, this time in Nice, France. Many dead and injured. When will we learn? It is only getting worse,” he said.

Thursday night's attack in Nice occurred as locals were celebrating Bastille Day, France's independence day.

As they celebrated, a truck ploughed into the crowd before attempting to flee the scene. Reports said the driver was killed.

Trump was rumored to be planning to announce Indiana Governor Mike Pence as his running mate in the now cancelled news conference.

Trump was reportedly considering Pence, New Jersey Governer Chris Christie, and former House Speaker Newt Gingrich as possible running mates.