Friday and Sunday: The Mercer County Chapter of the American Red Cross is conducting an emergency

Friday and Sunday: The Mercer County Chapter of the American Red Cross is conducting an emergency blood drive for those injured in Tuesday's terrorist attacks in New York City and Washington, D.C. Donors can visit Holy Trinity Lutheran Church at 3325 Morefield Road, Hermitage, between noon and 6 p.m. Thursday or Sharon High School at 1129 E. State St. between 11 a.m. and 5 p.m. Sunday. Donors must be at least 17, weigh at least 105 pounds and be in general good health.