of events lead to deemploymeipl the two duelling nations. let's go live to clare sebastian in moscow. what is being said? >> reporter: there is a lot of shock and sadness. he was a long serving diplomat. vladimir putin is said to be upset according to his spokesperson. he valued his professionalism and talent. we have seen people leaving flowers here in moscow. the foreign sminut minister ces lavrov leaving a message in the do condolen condolence book. i want to read you a tweet from samantha power.