'Wouldn't it have been to their advantage to warn the submarine before attacking, to avoid a grave international incident?'

But it could create for us a grave incident with your Federation.

"But what happened this week, the two grave incidents, it almost leaves us no choice."

"It is a very grave incident."

The gravest incident that day was a direct hit on a primary school in Poplar.

He said later: "It is a very, very grave incident.

"This is a very grave incident," said the spokesman, Nicholas Burns.

It declared, "Israel holds the Lebanese government responsible for the grave incident, and warns of the consequences should these continue."

We view this fire was a highly grave incident.

"What happened last Saturday night, that grave incident, clears away a psychological barrier, and I can envision in these circumstances another political murder taking place."