make sure no further damage. save anything you can such as appliances.
Insurance: (you contacted Insurance already). Check the insurance policy and understand what is covered.talk to the tenant to see if s/he has renter's insurance.
tenant: call red cross/or any local charity group to help your tenant. work out a plan with your tenant.
property: contact your handyman/contractor for estimation of the repair cost.
Sorry for the loss. But you will be fine if you have good insurance to cover losses such as repair, rent loss...
