OAKLAND — Oakland police say a reward of up to $15,000 is being offered for information leading to an arrest after a 15-year-old girl was shot and killed while walking in East Oakland Sunday afternoon.

Investigators say Jubrille Jordan was gunned down as she and a 14-year-old boy walked to a BART station around 3:40 p.m. Sunday.

The Oakland Tribune reports (http://bit.ly/TtHNso ) that Jubrille and the unidentified boy were shot by another teen — believed to be between 13 to 16 years old — who approached them and started shooting.

Police say 14-year-old boy is expected to recover after being shot in the foot.

The Tribune says the fatal shooting was Oakland's 131st homicide of the year, the highest number since 148 people were killed in 2006.

Of those 131 homicides, 12 of the victims were 18-years-old or younger.

Information from: The Oakland Tribune, http://www.oaklandtribune.com