Police believe the body may have been in the field for several weeks and they're still investigating the cause of death.

The police were still investigating the cause of the fire.

The company is also investigating the cause of the problem.

She said the cause of the attack was being investigated.

"Then how do you expect us to investigate the cause of death?"

The cause of the shut down is still being investigated.

Officials are investigating the cause of the failure, he said.

The Army is investigating the cause but says no enemy fire was involved.

The police were investigating the cause of the accident, he said.

The cause of the explosion was still being investigated last night.