1. GM has launched an internal investigation, and she will testify before a House committee on April 1.

2. Beijing, following an investigation underway since late 2013.

3. The Scotland Yard investigation was launched in May 2011.

4. The IMF gave its approval to capital controls, after a lengthy investigation, in December 2012.

5. The government started the investigation into price fixing and collusion among airlines in 2015.

6. The most recent previous Air Force investigation of an accident at an ICBM launch silo was in 2008.

7. He called for people not involved in the investigation to look into the claim.

8. It is too early for me to add any details of the investigation at this stage.

9. He said there would be an investigation into what went wrong.

10. He said the matter was under investigation and he did not have further details.

11. The company has been quiet on the investigation since it launched two weeks ago.

12. Police did not say how long the investigation into the officer would take.

13. An investigation is under way to work out the cause of the accident.

14. He acknowledged that the Russia investigation was one of the things he considered.

15. His attorneys plan to release the results of their own investigation soon.