berlin qatar ready sit negotiate table try end dispute gulf arab neighbor emir sheikh tamim bin hamad al-thani say friday berlin saudi arabia unite arab emirates egypt bahrain cut diplomatic trade link qatar june accuse world big exporter liquefy natural gas finance terrorism cozying arch-rival iran doha deny charge saudi arabia crown prince mohammed bin salman speak phone sheikh tamim week ago look like breakthrough riyadh promptly suspend dialogue doha accuse distort facts news agency report interaction know siege 100 days qatar sheikh tamim tell joint news conference german chancellor angela merkel berlin speak qatar readiness sit table solve issue part merkel say concern still solution crisis add support efforts kuwait unite state mediate end dispute sheikh tamim also say retain confidence german firm hold stake deutsche bank volkswagen separately qatar foreign ministry warn citizens travel egypt say authorities impose security measure qataris enter country provide detail statement qatar 's emir say ready talk end gulf crisis