Two ambulances arrive outside JLaw’s wedding venue as paramedics rush inside to treat a worker while preparations for the celebrity nuptials are in full swing

Several ambulances were spotted pulling up outside Belcourt Castle in Newport, Rhode Island, the venue where Jennifer Lawrence and her fiance Cooke Maroney are marrying.

An ambulance was called to the castle this afternoon at around 3pm after a wedding worker apparently suffered a seizure.

Medics rushed in and a young man was strapped onto a gurney by half a dozen EMTs and escorted to a hospital around one hour before the wedding took place.

Security were spotted putting up blackout curtains in an attempt to block the media and eager fans from peeking onto the property to see who was attending the celebrity nuptials.

An ambulance was spotted arriving at Belcourt Castle in Rhode Island where Jennifer Lawrence's Wedding is happening on Saturday — An ambulance was spotted arriving at Belcourt Castle in Rhode Island where Jennifer Lawrence’s Wedding is happening on Saturday

An ambulance was called to the castle today where allegedly a worker had suffered a seizure

Medics entered at 3pm but came back out to the ambulance without anyone on their stretcher

The ambulance arrived on scene just as the wedding preparations were finishing up

Crowds of excited local residents gathered on the typically quiet streets in the hopes of catching a glimpse of the Oscar winner and some of her 150 guests, among them Adele, Cameron Diaz, Sienna Miller, Nicole Ritchie and Kris Jenner.

The happy couple were seen at the venue earlier in the day as preparations for the festivities ramped up, in exclusive pictures obtained by DailyMail.com.

Carolyn Rafaelian, founder of the Alex and Ani accessories and jewelry company, is the owner of the historic mansion which she has restored to its former glory since buying the property in 2012.

A wood-fire barbecue was underway for guests as they made their way inside to enjoy a cocktail hour ahead of the nuptials. It will be followed by more cocktails, dinner and a party, with entertainment provided by band, The Ruckus.

First responders walked casually back to their ambulance after the emergency was over

A second ambulance was spotted pulling up outside Belcourt Castle in Newport, Rhode Island

The Newport Fire Department was called to Jennifer Lawrence and Cooke Moroney's wedding at the Belcourt in Newport, Rhode Island — The Newport Fire Department was called to Jennifer Lawrence and Cooke Moroney’s wedding at the Belcourt in Newport, Rhode Island

The medical team brought all of their equipment inside after hearing that a member of staff and taken ill but in the end they did not need to be transported to hospital

On Friday night, Jennifer, 29, and Cooke, 34, hosted dozens of friends and family for a clambake on Rose Island.

Exclusive pictures by DailyMail.com show the bride and groom riding together in an SUV on Saturday as they checked on final details at the wedding venue, Belcourt Castle in Newport, Rhode Island.

The lovebirds left the venue in the afternoon, presumably heading back to their hotel to change outfits ahead of the evening ceremony.

Security was heavy ahead of the wedding, a star-studded affair with a guest list including Kris Jenner, Adele, Cameron Diaz and Sienna Miller.

Maroney arrives at the Belcourt mansion on Saturday for the wedding

Sienna Miller and Kris Jenner arrive to Jennifer Lawrence Wedding in Newport, RI

One of the decorated tables with the place settings inside the mansion

Teams of staffers were seen ferrying crates of champagne glasses into the stately historic home and fire pits were being stoked for this evening’s festivities.

Arrangements of roses stood outside the venue in preparation and staff carved pumpkins and fall vegetables.

Vintage fridges and cabinets along with the racks of dishes, pots and cocktail pitchers were left outside in the fall sunshine.

Rugged caterers were also spotted preparing fresh squash and whole fish for the reception as the meat smoker began billowing.

The couple have reportedly invited 150 people to their nuptials, with a minimum spend being around $100 a head for the most basic package.