Authorities have a 14-year-old student in custody following the detonation of a homemade bomb at Detroit's Phoenix Multicultural School

The device, made of household cleaning chemicals, exploded in the hallway of the building at about 8:30 a.m., said school officials.

School officials said no students were injured because they were all inside classrooms.Police said the 540 students at the K-8 school were immediately evacuated, and many were forced out into the cold without their coats.The students are being bused to Roberto Clemente School. Parents are asked to pick them up there at the end of the day. School is expected to resume at Phoenix Multicultural Thursday.