Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: A four-mile stretch of the A40 near Llandovery, Carmarthenshire, was shut on Wednesday evening between Heol Rhos and the A482 at Llanwrda. Dyfed-Powys Police posted pictures of the hole on social media. It is not yet known what caused it to open up. Police have not given an estimate of how long it will take to repair the road and for it to reopen. Traffic has been diverted via the A4069 through Llangadog. Two years ago a 30ft sinkhole appeared in Towy View Park, off Capel Dewi Road, near Carmarthen, just metres away from homes.

Sinkhole shuts A40 both ways in Carmarthenshire