Naya Rivera is missing today after a swimming accident. The “Glee” actress was swimming with her four-year-old son when, for unknown reasons, she submerged and did not come back up. Other boaters found her son unharmed but alone in a boat. The incident occurred in Lake Piru, in Ventura County outside of Los Angeles. “She’s missing at this point and we have an active search and rescue operation trying to locate her,” police said. A helicopter had been seen searching the lake, but that search has been suspended until daybreak. Some media sources are now saying she's "presumed dead." Yesterday Naya posted a picture of her and he son together with the caption “just the two of us.“ Naya played Santana Lopes on “Glee” for six seasons and was once engaged to rapper Big Sean.