The Shadow Chancellor will visit the SSI steel plant, which is set to close with the loss of up to 1,700 jobs.
John McDonnell told ITV News Tyne Tees' Political Correspondent Paul Brand, he would be making a trip up to Redcar "on Monday if not before".
He has said he plans to put "maximum pressure" on the Government to do more to help the stricken plant:
The factory is being shut down after Thai owner SSI said it had no other choice because of plummeting steel prices.
The driver killed in a coach crash in the French Alps has been named as North East man Maurice Wrightson.
The 64-year-old, who was working for Stanley-based Classic Coaches, was one of two North East employees from the bus company Arriva, who were transporting 52 people back to the UK.
The owners of a North East coach company said a driver alerted passengers before his vehicle crashed in France last night - which may have saved lives. The driver himself, who was from the North East, was killed.
TGM, which owns Classic Coaches, said the driver tried to take evasive action and paid tribute to his efforts.
The company also paid tribute to a second driver from the North East, who was uninjured, for helping passengers to leave the vehicle.
It added: “It is too early to say what caused the accident, however, we have launched a full investigation and are working closely with the local authorities. Our own safety specialist is attending the scene to support the investigation.”
The bus driver who died in a crash in the Alps has been hailed a hero. The driver, who was working for Stanley-based Classic Coaches, is said to have warned passengers there seemed to be a problem before taking evasive action.
The company he worked for released a statement paying tribute to his quick thinking. Investigations are ongoing now into what may have caused the crash.
The coach company whose bus crashed says it is 'deeply saddened' to learn that one of their drivers has died.
The TGM coach was carrying 51 British passengers back to Newcastle, when it crashed in France.
The Managing Director said the company was offering full support to the driver's family.
VIDEO: French firefighters are continuing to clear the debris of a coach that crashed and burned on the road from Alpe d'Huez in the French Alps. Brighton company Skibound said it hired the coach, and that 51 people were on board.HELPLINE 01273 244 650
On the last day of the Liberal Democrat Party Conference, Nick Clegg urged his party to hold its nerve. In his keynote speech in Brighton the party leader said the Lib Dems should "keep going".
It's the mid-point of the party's coalition with the Conservatives. But disatisfaction in areas of our_ region has led members to question whether they should separate from the Conservatives in government altogether. Our reporter Frances Read has been in Brighton.