Dear XXX,

We are worried about the bushfire in [[California]. I hope you and all your family members are all right. We are shocked to see the news and the movies of the bushfire over there on TV.

[California] is a wonderful land with beautiful nature. I hope it won't be destroyed any more by wild fire. Please let us know if there is anything we can do for you.

Looking forward to hearing from you.

Sincerely,
[your name]