The pastor of a black church in Michigan interrupted Donald Trump as he railed against Hillary Clinton during an address to the church's congregation.
Rev Faith Green Timmons stepped in as the Rupublican nominee was attacking his Democrat rival for supporting global free trade agreements, which Trump was linking to problems in Flint, Michigan, where he was speaking.
Trump said: "Hillary failed on the economy. Just like she's failed on foreign policy. Everything she touched didn't work out. Nothing. Now Hillary Clinton..." He was then interrupted by the Bethel United Methodist Church pastor.
"Mr Trump, I invited you here to thank us for what we've done in Flint, not give a political speech," the pastor said.
Trump then clasped the pastor's hand and said: "Oh, oh, OK, that's good," while shuffling papers on his podium.
Trump reverted to talking about drinking water problems in Flint, but he was heckled by the audience.
After a woman shouted out that Trump, who is a real estate magnate, had used discriminatory housing practices in his buildings, he responded: "Never, you're wrong. Never would, never would".
The pastor interrupted again, telling the hecklers: "He is a guest in my church and you will respect him".
The businessman and presidential candidate swiftly ended his speech, which lasted six minutes.
Flint is suffering from a water crisis that has seen the city's water supply contaminated with lead and rendered toxic.
According to politico.com, Trump preceded the church visit with a 15-minute tour of the water treatment centre that is responsible for the contamination. He gave a few scripted remarks to the media and thanked the "very, very good executives" at the centre.
