We share your sorrow and send our hearts as Inselpeter asked. Europe has declared Friday as a day of mourning with a 3 minute silence as a gesture of respect and sympathy. Only a gesture but this shows a shared emotion.
If anyone can think of anything practical that those of us further away can do please just ask. We will take a close interest in the "what next" discussions here and elsewhere, because ensuring this does not happen again anywhere is important.
My thoughts and love are for those with a close involvement in the tragedy. May they take strength from friends, colleagues, and the support of strangers.