11.   The delay was caused by technical problems.

12.   There also is a bug when searching by date that can cause delays in query time.

13.   Stack-ups at Heathrow are causing delays for hundreds of travellers.

14.   Heavy traffic is causing delays on the freeway.

15.   Although the tests have caused some delay, flights should be back to normal this morning.

16.   Logistical problems may be causing the delay.

17.   The delay had been caused by uncertainty over the status of Vneshekonombank, the former Soviet foreign affairs bank, which had been taken over by Russia in December.

18.   It is causing delays in refurbishment, but in the long term will even out.

19.   Some GPs are very resistant to producing copies of their records and can cause considerable delay.

20.   Where transfer is indicated on other grounds it may be denied if this would cause undue delay which would be prejudicial to the child.