UPDATE: Briseanna and Brian have been found safe. They returned home on Monday afternoon.
The Hillsborough County Sheriff's Office is currently looking for two missing children from Tampa.
Deputies said Briseanna Thompson, 16, left her home with her brother, Brian Malone, 2, Sunday around 6 p.m.
She took her brother after an argument with family members.
Neither of them have been seen since then.
She is believed to frequent the area of Copeland Park.
If you see either Briseanna or Brain, contact the Hillsborough County Sheriff's Office at 813-247-8200.