Can you help us find 12-year-old missing Amira Powell?

can you help us find 12 year old missing amira powell

Amira has not been seen since she left her home in Fratton, Portsmouth, at around 4.30pm this afternoon (Saturday, February 25). 
This is very out of character for Amira, and we are concerned for her safety due to her young age.
She is described as black, 5ft 6ins tall, of fairly muscular build, with black afro hair tied in a scrunchy, and has a clip on nose ring. 
Amira was last seen wearing a black Adidas jacket with yellow sleeves, and black leggings.
Have you seen her, or do you know where she is? 
Any sightings please call 101 or 999 appropriately, quoting 44170073223.