The host university should be equipped to help you with most things – follow their instructions. In case of a serious event (for example a natural disaster, political disturbance, etc.), you should also check the recommendations from your home Embassy and/or the Swedish Ministry for Foreign Affairs (UD). Swedish embassies and consulates abroad can be contacted if necessary. After ensuring your safety, keep your relatives and your coordinator at Jönköping University informed.
See the list of Swedish Embassies abroad on swedenabroad.se
Contact International Office http://exchange.ju.se/ (choose Outgoing) and keep us informed about your situation so that we have an overview of the situation. This improves our chances of giving you the help you need.
You should also contact the international office at your host university.