In December when receiving the inaugural Fifa Peace Prize, President Trump called the United States "the hottest country in the world right now"
Fan group Football Supporters Europe (FSE) says it is "extremely concerned by the ongoing militarisation of police forces in the US" before this summer's World Cup in North America.
It comes after two US citizens were shot dead by federal agents carrying out US President Donald Trump's immigration crackdown in Minneapolis over the past month.
US authorities have not ruled out Immigration and Customs Enforcement (ICE) raids targeting undocumented immigrants at World Cup venues.
Ronan Evain, executive director of FSE, said: "At this stage, travelling fans are left with little to no information as to what will be allowed or not at Fifa venues, or what to expect from the police elsewhere in the country."
