The package was intercepted before it reached the couple and an analysis of the powder found that it was harmless. They added than an an allegation of malicious communications is being investigated.
Security will be tight, especially since the happy couple will take to the streets following their nuptials - taking a carriage ride around Windsor, following the ceremony in St George's Chapel at Windsor castle.
PrinceHarry first confirmed his relationship with the American actress, who is mixed race, in November 2016 by issuing a strongly-worded statement about media harassment and racism against her on social media.
The suspicious package, which was delivered earlier this month to the royal residence at Kensington Palace in London, reportedly prompted an anthrax scare.
The Standard said police are investigating if the incidents are linked. Markle, a successful actor who recently bowed out of her most prominent role in U.S. legal drama "Suits", is from a mixed-race background.
A letter containing non-harmful white powder was also reportedly sent to Home Secretary Amber Rudd the following day.
There have been no arrests yet but inquiries continue, according to police.
However, neither Kensington Palace, where Harry and Meghan live, nor the Metropolitan Police has confirmed if this was the case.
State of emergency as cyclone hits New Zealand
Expect gale southwesterly winds for the coastal parts of the eastern South Island, severe gales possible out on Banks Peninsula. The Prime Minister of New Zealand, Jacinda Ardern, directed troops to be deployed in areas are expected to be hit the hardest.
Hanyu defends gold in men's figure skating
The favourite going into the final, Hanyu earned a score of 206.17 to take the gold with a total of 317.85 points. Seventeen-year-old USA skater Vincent Zhou became the first person to land a quadruple Lutz at the Olympics.
KP Sharma Oli to be appointed as Nepal's next PM
The demonstrations forced the king to reinstate parliament, having disbanded it in 2002 in an attempt to crush the rebels. The Communist leader is expected to take the oath of office later today, presidential secretary Bhesh Raj Adhikari said.
Hazard out to shine against Messi
Lewandowski was free after a mistake from Besiktas captain Atiba Hutchinson and Vida had few options other than to bring him down. Given that Chelsea are hosting Barca in the Champions League this week, we felt it would be fitting to test your knowledge.
Microsoft lets iOS App transfer photos to PC
It looks like that day is here now as they have officially brought the Photos Companion app to the Google Play Store. There you will find a preview option at the end - " Help Microsoft Test the mobile import over WiFI feature ".
Tibetans mark double New Year with special prayers
According to the Chinese zodiac, this is the 4715th year of the Dog, described a good year for actions, events and movements. If you were born in 1922, 1934, 1946, 1958, 1970, 1982, 1994 or 2006 congratulations, you were born in the Year of the Dog.