Mexican boxer Julio Cesar Chavez Jr., son of the legendary fighter, has been arrested and is being processed for "expedited removal" from the United States due to alleged ties to the Sinaloa Cartel, the Department of Homeland Security announced Thursday.

(Reuters) -Mexican boxer Julio Cesar Chavez Jr. has been arrested by u.s. immigration officers and is being processed for expedited removal from the country, the Department of Homeland Security said in a statement on Thursday.

Chávez was determined to be in the country illegally and removable one day before his loss to Jake Paul, according to the DHS.

Attacks perpetrated by lone actors are the biggest terrorism threat to July 4th festivities in New York City and elsewhere, federal authorities said in a threat assessment obtained by CNN.

The FBI and Department of Homeland Security have said lone wolf attacks pose the biggest threats to July 4 celebrations this year in City and San Francisco. Intelligence bulletins sent out ahead of the holiday warn of copycat attacks and homegrown extremists,

The FBI and DHS have issued a joint bulletin warning of potential lone-wolf terror attacks ahead of Independence Day celebrations.