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.

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

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.

Federal regulators are still investigating the cause of those problems.

If it still doesn't grow back, then you may want to see a doctor to further investigate the cause of your hair loss.

Fire Department officials were investigating the cause of the explosion.