The A465 between Glynneath and Hirwaun has now reopened, South Wales Police say.
One person was taken to hospital earlier in the evening after 12 vehicles were involved in a collision.
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Sands United meet each week to train and play football but their main purpose is to offer support to each other as bereaved fathers.
Patchy rain may develop across eastern areas during the afternoon and should clear by evening.
Gareth Bale equalised for Wales just before the half-time whistle.