Complex sentence: On day nine, the crisis deepened on when an Omani gunboat attacks and apparently destroys an unarmed Dutch vessel which tried to go through the Strait of Hormuz; the CVN broadcast also notes the presence of Soviet attack subs near the site of the attack.
Split into simpler sentences: On day nine, the crisis deepens when an Omani gunboat attacks and apparently destroys an unarmed Dutch vessel which tried to go through the Strait of Hormuz. The CVN broadcast also notes the presence of Soviet attack subs near the site of the attack.