Two police officers were forced to become emergency midwives when a Layham woman went into labour on the A14.
Andrew and Holly Mackie were on their way to Ipswich Hospital when their soon-to-be-born son decided he could not wait any longer.
Knowing that they would not have time to get to hospital, Andrew pulled over on to the hard shoulder before spotting the blue lights of a police car which had stopped to help a broken down motorist.
Mr Mackie ran towards Pcs Jerry Cohen and Andy Masterson, explaining his wife had gone into labour.
Both officers came to the assistance of the 33-year-old mother who, by now, was very close to giving birth.
Only seconds later, at 12 minutes past midnight, Rupert Mackie was born.
“This was very much a case of being in the right place at the right time,” said Pc Masterson.
“We just happened to be on the Orwell Bridge when we heard someone shouting.
“Andrew Mackie was coming towards us saying his wife had gone into labour and could we help.
“Jerry and I are both fathers and have a fair degree of knowledge when it comes to labour but have never been quite so hands on.
“Rupert arrived very quickly and we wrapped him up in one of our emergency foil blankets which we always have with us, started the engine of the car and made sure he stayed warm until the ambulance arrived.”
Mrs Mackie, from Upper Street, said she had been “overwhelmed” by public response to the story.
Rupert, who weighed 7lbs 5oz, joins two-year-old daughter Rose in the family.
“We would like to thank Andy and Jerry so much for their help,” said Mr Mackie.
“They really did go above and beyond, both on the bridge and at the hospital.
“We are so grateful for what they did but also that they stayed so calm.”
The 32-year-old added: “When I was driving towards the bridge, Holly said the baby was coming.
“It was absolute sheer luck that I could see blue lights flashing on the bridge – I didn’t care which emergency service it was – I just knew I would have to ask for help.”