NHS England has released its figures for October, which show that more than 30% of people admitted to hospital from A&E had to wait over four hours for a bed or for treatment.
In October, more than 30% of people admitted to hospital from A&E had to wait more than four hours for a bed or to get treatment after the decision was made to admit them.
That's a 3% increase on the month before and a 12% increase on October 2019.
According to the latest figures, the overall number of people waiting for treatment was at a record high of 5.83 million at the end of September.
Professor Stephen Powis, NHS national medical director said there is "no doubt pressure on the health service remains incredibly high".
"But despite high demand, staff are going above and beyond to see more patients and deliver millions more tests, checks, treatments and operations," he added.
"Increasing numbers are coming forward for treatment and this is expected to go up, but it remains really important people do not delay seeking help from the NHS if they feel unwell."
The increased wait times come as more than 1.4 million people attended A&E - the highest amount ever for October and third highest of all time.
This compared to 1.38 million attendances in October 2019 and 1.39 million in September 2021.
But although major A&E attendances for October hit record levels this year, the number of those who went on to be admitted to hospital from A&E was lower - or similar - to previous years.
These hit 389,048 in October, compared to 412,649 in October 2020 and 367,175 in October 2019 while the highest rate on record was in December 2019, at more than 416,000.
NHS England also highlighted that a record number of calls were answered by NHS 999 services last month - at 1,012,143.
However, some of these calls related to the same incident with the number of individual incidents reported as 747,472 - compared to 745,446 in October 2020 and 741,514 in October 2019.
Therefore, the number of incidents that NHS England actually responded to in October was similar to previous months.
The percentage of these incidents where an ambulance was sent to the scene was also the lowest on record in October at 87%, compared to 94% a year earlier, the figures show.
Elsewhere, paramedics have warned that patients with serious conditions are at risk due to record ambulance delays.
The high demand the NHS is facing was also shown by the fact only three Clinical Commissioning Groups out of 107 met the 62 day target for first treatment after an urgent GP referral.
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