Birmingham, England's Queen Elizabeth Hospital is on high alert after two people tried to get in to see an injured Pakistani teenager.
Malala Yousufzai was shot in the head by the Taliban last week and was transported to the United Kingdom for treatment.
Police say two men claiming to be Malala's relatives were questioned and turned away.
Malala was targeted by the Taliban for promoting education for girls and for criticizing the militant group.
Doctors say the girl is in stable condition and that she has a chance to make a good recovery.