Detailed Instructions: In this task, you are given an article. Your task is to summarize the article in a sentence.
Q: Traffic Scotland said the crash near the Gladsmuir junction took place in weather which was causing "dangerous driving conditions".
They urged drivers to be aware of potential problems.
Police confirmed they were at the scene but said that it was too early to give details of the accident.
A:
The A1 road in East Lothian has been closed in both directions following a collision.