UPDATE at 1912hrs
Northbound carriageway now also closed.
Northbound diversion implemented.
29 to Wood Green - From Seven Sisters Road, R Blackstock Road, L Brownswood Road, L Green Lanes, A Green Lanes LOR.
253 to Hackney Wick - From Seven Sisters Road, R Blackstock Road, L Brownswood Road, A Lordship Park, A Manor Road, L Stamford Hill, R Egerton Road, R Rookwood Road, R Castlewood Road, L Clapton Common LOR.
254 - Curtail at Manor House.
259 to Edmonton - From Seven Sisters Road, R Blackstock Road, L Brownswood Road, L Green Lanes, A Green Lanes, R St Ann's Road, L Seven Sisters Road LOR.
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The southbound carriageway is blocked, at Alexandra Grove, due to an emergency services incident.
Routes affected: 29, 253, 254, 259
29 to Trafalgar Square - From Green Lanes at Seven Sisters Road, A Green Lanes, R Brownswood Road, R Blackstock Road, L Rock Street, R St Thomas's Road, L Seven Sisters Road LOR.
253, 254, 259 to Euston, Aldgate and King's Cross - From Seven Sisters Road, L Green Lanes, R Brownswood Road, R Blackstock Road, L Rock Street, R St Thomas's Road, L Seven Sisters Road LOR.
Diversion reference: D51186