OAKLAND -- The East Bay SPCA will perform up to 70 free spay and neuter surgeries Tuesday to commemorate World Spay Day, the annual one-day marathon that promotes these procedures as an effective means of saving animals' lives.

The free spay and neuter surgeries for pit bulls and pit bull mixes, Chihuahuas and Chihuahua mixes, and cats are available to residents of Alameda and Contra Costa counties.

All spay and neuter surgeries will include free vaccinations and pain medication. Identification microchips can implanted for $10.

The East Bay SPCA is at 410 Hegenberger Road. Qualified residents can register online at https://www.eastbayspca.org/spayday. For more information please call 510-569-0702.