The air ambulance helicopter was called out after two people were taken ill in Morecambe within minutes of each other.
Emergency services raced to Morecambe Promenade on Thursday morning after reports of two separate medical incidents on Marine Road.
A woman and a man, both in their 50s, were taken to hospital, both in a serious condition,
A spokesperson for North West Ambulance Service said they were called at 11.27am on Thursday to reports of an unresponsive patient.
They sent two air ambulances, a road ambulance, a rapid response vehicle and two on scene commanders.
A North West Air Ambulance spokesperson said a woman had suffered a suspected cardiac arrest. She was airlifted to hospital.
The air ambulance had also been called out earlier that morning after reports that a man had collapsed at a bus stop. The helicopter was stood down en route to the incident.
North West Ambulance Service said they received a call at 11.02am to reports that a man had collapsed, and sent a road ambulance and a rapid response vehicle. The police also attended.


E-bike shop moves from Lancaster to new Carnforth showroom
Lancaster workshop to tackle the issue of drink and needle spiking
Morecambe raw feeds shop up for three 'Animal Star' awards
Two new festivals proposed for Morecambe entertainment venue the Platform
Second day of disruption as work continues after train derails in Cumbria
Morecambe lifeboat crew’s swift response rescues swimmer ‘being swept dangerously out to sea’
'Street Meets' announced to answer your questions amid new wheelie bin roll-out
Campaign group welcomes new "life changing" bus service to Morecambe
Lancaster prison worker jailed for drug offences
Major disruption as train derails on West Coast Main Line
Talks begin for events to mark Eric Morecambe's 100th birthday
Lancaster music venue due to shut will now stay open "well into 2026"
Halloween What's On Guide
LISTEN: Launch of new group in Morecambe to help with gambling addiction
LISTEN: New centre for people with disabilities to open in historic Lancaster location
Mayor of Lancaster launches children's Christmas card competition
Councillor loses her seat for not attending meetings for six months
Firefighters attend two call-outs for vehicle fires in Lancaster area
Lancaster youth charity announces new CEO
LISTEN: Lancaster singer-songwriter tells how music saved her life
