A high school north of Brisbane went into lockdown this morning after police received multiple calls about a naked man in the area.

Just before 9am police received the first call where the person reported they had seen the man on Lavarack Road in Bray Park near Bray Park State High School and the Anam Cara Aged Care Community.

As a safety precaution, the school was locked down, police searched the school grounds before telling the school there was no trace of the man at about 9:40 this morning.