Hi - in case it is of use,

I just got back home having dropped off the hire car and getting a lift back. Noticed an accident on the stretch between Abingdon North and Oxford (Oxford bound) on the A34, looked like a couple of bikes and cars were involved. Tailback will no doubt be hitting Oxford's A34 junction by now.

Worth avoiding, and hope it wasn't as bad as it looked :(

there was one on same stretch yesterday from what i could gather on the TP bulletins.