Marvel Cinematic Universe's latest (18th in the entire series) 'Avengers: Infinity War' is finally in theatres today worldwide, after a long wait of nearly six months when it dropped its first trailer. With every new Avengers trailer (all of them viral) and TV interview, Marvel tantalized fans with new details, possible deaths and the return of old characters. Naturally, anyone who could potentially ruin the film with spoilers is going to have to deal with the wrath of fans, who are clearly very edgy right now. So when Mumbai Police, usually a hit on Twitter with their clever campaigns, tweeted what seemed like a spoiler from the Avengers: Infinity War, fans didn't like it one bit.

On Thursday, with a reference to the Marvel character 'Vision', Mumbai Police posted a tweet about the safety of its citizens.

(If you're yet to watch the film, best to look away now)

"Some visions may or may not die... But our vision of your safety shall live till infinity," the creative said.

Errr. Wrong move.

Followers were quick to reprimand the police department about dishing out spoiler about Avengers: Infinity War.

Here's the tweet that irked Marvel fans:

A vision that will live forever! #InfiniteSafety for Mumbai pic.twitter.com/ujDjjWiDbR

— Mumbai Police (@MumbaiPolice) April 26, 2018

There were very few takers for Mumbai Police's noble message. The message from the fans, on the contrary, was very clear: NO SPOILERS!

Mumbai police giving spoilers 😂😂but yeah with a message🙏🏻

— Welcome.To.Kshmr (@Prince33162025) April 26, 2018

Wtf give spoiler alert 😤

— Upneet ✨ (@upneet86) April 26, 2018

pic.twitter.com/oX3GXL5LGF

— saket (@iam_saket) April 26, 2018

Please spoiler maat dijiye. Ticket kharidne mein pahut paisa laga hai bhai.

— Rounak G (@MisterJo_Gho) April 26, 2018

Don't spoil the movie damn it 😂

— Shubham Gharpure (@shubhamCR7REAL) April 26, 2018

Did you just spoil Infinity War for me?

— The Fresh Prince of B’lore (@CaptHyderabad) April 26, 2018

Sir, this is not done.. Why this Spoiler

— Sachin Das (@PrinceRages) April 26, 2018

Okay Mumbai Police, spoiler alert 😂

— Mamacita (@sarca_wat) April 26, 2018

Please don't give out spoilers @MumbaiPolice , picture dekhna abhi baaki hai.

— Tam Sachdev (@neurosistical) April 26, 2018

Mumbai Police have always managed to score a perfect ten with their witty campaigns and social media strategy. Just earlier this week, Mumbai Police wished Master Blaster Sachin Tendulkar on his birthday and also managed to deliver a message on road safety - with just one simple tweet.

The social media team of Mumbai Police is known for its cheeky and witty references to pop culture hits like Bahubali and Game of Thrones. Mumbai Police made their Twitter debut in December 2015 and the handle has nearly 5 million followers. The account is run by a digital marketing agency and the tweets are approved by the police.