Twelve American World Wildlife Fund members who were visiting a panda reserve in China when an earthquake hit this week are alive and safe, but two Chinese volunteers with the nonprofit group are still missing, reports CNN.

The “ecotourist” group was visiting the breeding center at Wolong Giant Panda Reserve on Monday when the earthquake struck. The disaster is said to be responsible for 15,000 deaths so far.

The 86 pandas at the reserve survived the earthquake.