A man was taken into custody outside the funeral of Beau Biden at the St. Anthony of Padua Roman Catholic Church in Wilmington, Delaware, after allegedly throwing coffee onto demonstrators from the Westboro Baptist Church Saturday morning. The arrest took place at 10:12 a.m. EDT, the Delaware News Journal reported.

At time of the incident, three members of the Westboro Baptist Church in Topeka, Kansas, were concluding their picketing outside the Catholic Church in Wilmington, where thousands gathered to pay tribute to the son of Vice President Joe Biden. Beau Biden, 46, died of brain cancer last week.

The Westboro Baptist Church targeted Joe Biden with a tweet posted Saturday morning:

When the incident occurred, the demonstrators were packing their signs and preparing to leave, according to an Instagram post by Delaware News Journal reporter Esteban Parra.
 
The man appeared to be approaching the protesters from behind, a cup of hot coffee in hand, according to another Instagram photograph posted by Parra. A police officer was already approaching the accused before the incident, the photo revealed.
 
Each of the three members present had coffee thrown on them, the Westboro Baptist Church told International Business Times.
 
The Wilmington Police Department did not immediately respond to a request for comment and more information on the arrest. The Westboro Baptist Church referred to the act as "violent" and included the hashtag #hotcoffee, in a tweet sent 10 minutes after the incident:
Beau Biden served as attorney general of Delaware from 2007 to 2015. He had not seek re-election for a third term, and, instead, had plans to run for governor, Politico reported.

"Joe Biden is Delaware, and his son is also Delaware to me," Lisa Rial, a 54-year-old Pennsylvania resident who was in line outside the church, told the Associated Press. "They're synonymous with Delaware."

U.S. President Barack Obama was scheduled to give the eulogy at the service, NBC News reported.