My Dad is in Bangkok (Thailand), he's been stranded...I'm scared for him...Is he OK, what is happening?

It's not on the BBC news much, he went to Thailand for medical treatment, now my mum phoned and told me 62 flights are cancelled..waiting to here from my mum, really worried, I know there are terrorist attacks in Mumbai, but my Dad is in Thailand...I can't sleep. What is the world coming to?