0439 GMT July 20, 2018
Anti-riot police officers blocked the demonstrators before they reached the seaside embassy compound, raising tensions as the protesters tried to push their way in, skynews.com wrote.
The activists shouted anti-US slogans and carried banners with such messages as 'Ban Trump!', 'Trump, not welcome' and 'Fight US imperialist war.'
They vowed to hold more protests against Trump, who is scheduled to arrive in Manila on Sunday for the leaders summit of the Association of Southeast Asian Nations (ASEAN).
Trump is scheduled to meet with Philippine President Rodrigo Duterte on the sidelines of the ASEAN summit or the Asia-Pacific Economic Conference meeting being held in Vietnam.
US lawmakers have called on Trump to raise the issue of human rights violations in the Philippines during his meeting with Duterte, who vowed to tell other foreign leaders to 'lay off' on the issue during the ASEAN summit.