"We regret that the lack of information contributed to the confusion after the immediate operation to free the hostages was over," he said.

The 'triage' system of selective treatment would undoubtedly have been put into immediate operation.

If the patient's condition is severe, however, immediate operation is usually necessary with application of drainage system.

She had a fall night before last, and an immediate operation is imperative.

She gives birth to twins, but unluckily, one of them had a heart complication and needed immediate operation.

"I must have immediate and decisive operations," Jilinsky telegraphed three days later.

Everything not necessary to the immediate operation of the plant - administrative offices, television station and so forth - lay beyond the hills.

The most important was that I must have an immediate operation.

Yet everything is in place for an immediate humanitarian operation.

It was unclear whether ordering an immediate search-and-rescue operation might have made a difference.