Can we do anything about my father’s estate from Tennessee or do we need to do something in Texas?

My father passed away a week ago and we were not notified until the evening before his funeral. My sister and I live in Tennessee and he lived in Texas so we could not get there in time, fortunately, we were able to send flowers. I received a message from a friend of my fathers' saying that his sisters did not want us notified about his death because they didn't want my sister and I to have anything of his and they needed time to get everything out of there, such as his personal belongings, household contents and all vehicles. My father told my sister and I that he had a will and everything was left to us but we don’t know where it would be located. He had bank accounts and possibly a life insurance policy. We are not sure what we should do about this or if there is even anything we can do. We would appreciate any advice you might have. Thank you.