Emma Watson was shaken when she was recently besieged by students and other spectators at an American football match.

The 19-year-old actress was attending a match between a team from Brown and one from Harvard.

However, she had to be protected by security guards when she was plagued by fans.

“She looked quite shaken,” the Telegraph quoted one onlooker, as saying.

The ‘Harry Potter’ star, who plays Hermione Granger in the hit wizard series, recently arrived at Brown University, Rhode Island.

The British actress, who grew up in Oxfordshire and passed all her A-levels with straight A grades, is studying art and literature at the prestigious institution.