WASHINGTON - US President Barack Obama has strongly condemned what he said appeared to be a “horrific terrorist attack” in Nice.

Offering assistance to investigate the attack which left at least 80 people dead, Obama vowed to help France “bring those responsible to justice.”

“On behalf of the American people, I condemn in the strongest terms what appears to be a horrific terrorist attack in Nice, France, which killed and wounded dozens of innocent civilians,” Obama said in a statement.

“We stand in solidarity and partnership with France, our oldest ally, as they respond to and recover from this attack,” Obama said. “We know that the character of the French Republic will endure long after this devastating and tragic loss of life,” Obama added.

“On this Bastille Day, we are reminded of the extraordinary resilience and democratic values that have made France an inspiration to the entire world.”

Secretary of State John Kerry said the US embassy in Paris was attempting to account for American citizens in Nice.

“The United States will continue to stand firmly with the French people during this time of tragedy. We will provide whatever support is needed,” Kerry said in a statement. Democratic presidential hopeful Hillary Clinton and her Republican counterpart, Donald Trump, both weighed amid the busy campaign season. Trump cancelled his Friday plans to announce a vice presidential running mate “out of respect for this horrific situation.”