Now they are certain that an attack can happen again.
The attack happened on June 16 but was not reported to the police until yesterday, he said.
The attack on the Base couldn't have happened long ago.
Police say the attack happened in the early hours of Wednesday morning.
No one knew exactly when the next attack would happen.
Life was moving on almost as if this last attack hadn't happened.
But the attack almost did not happen, the pilots said.
The attacks happened within a few minutes of each another.
The attack happened at around 4.30pm yesterday on a beach considered one of the most beautiful in the world.
They're trying to trace two men seen in a car close to where the attack happened.
