It seems like Prince Harry and Meghan Markle's wedding is imminent, with a close friend of the royal dishing out some interesting details.

According to Daily Star, former US marine Kirstie Ennis, who has been friends with Harry for five years after meeting him at a Walking With the Wounded charity event, confirmed she was expecting a royal wedding between the pair.

When asked if she would be attending Harry's upcoming wedding, the American nodded and added, "I don't think I'm worried about the wedding. I'm worried about the after-party."

When asked for more information, she replied with "I am pleading the Fifth."

The couple recently set the rumour mill into overdrive after the Suits actress was reportedly spotted trying on bridal gowns while she was out shopping in Canada.

"She thought it'd be fun. She was with a couple of friends and they all thought she looked gorgeous," a source told The Sun.

"She joked she couldn't walk down the aisle of Westminster Abbey in it. But the fact she's trying on dresses and thinking about their wedding shows how serious they are."

It is believed that Prince Harry is said to be planning to pop the question to his girlfriend before he celebrates his 33rd birthday on 15 September.

"Harry has found the girl he wants to spend the rest of his life with," one of his friends told the Daily Mail. "He is fuelling all the talk about the future."

Another source said, "There's no question they are madly in love. Harry is really happy, and from seeing them together I'd say it's just a question of when, not if, he's going to ask her to marry him."