Missing teen in red hoodie near downtown Brownsville

I lost my sister, 16, yesterday around 4:15pm. We were near the Brownsville Convention Center on West Elizabeth Street, by the taco stand outside Market Square. She's about 5 foot 3 inches, slender, wearing a red hoodie, faded jeans, and white Nike sneakers. She has shoulder-length dark brown hair and a crescent moon tattoo on the inside of her left wrist; she also wears a blue backpack with a tiny panda keychain. We last saw her heading toward the Riverwalk path toward 6th Street. This is really scary—she has a green lanyard with her school ID that I need back to know she's safe. Please contact me if you've seen her.