Colin Kroll, the co-founder and CEO of the HQ Trivia app, has died, a spokesperson for the company he founded confirmed to ABC News on Sunday.

"We learned today of the passing of our friend and founder, Colin Kroll, and it's with deep sadness that we say goodbye," the spokesperson said in a statement. "Our thoughts go out to his family, friends and loved ones during this incredibly difficult time."

Colin Kroll accepts the Breakthrough Award for Emerging Technology from rapper Lil Jon (C) onstage at the Variety Breakthrough of the Year Awards during the 2014 International CES at The Las Vegas Hotel & Casino, Jan. 9, 2014, in Las Vegas.(Isaac Brekken/Getty Images for Variety) Colin Kroll accepts the Breakthrough Award for Emerging Technology from rapper Lil Jon (C) onstage at the Variety Breakthrough of the Year Awards during the 2014 International CES at The Las Vegas Hotel & Casino, Jan. 9, 2014, in Las Vegas.

Kroll, who was 34 years old, was found unconscious and unresponsive in his Manhattan apartment on Sunday by New York City Police after they responded to a wellness check, the NYPD said in a statement.

He was pronounced dead on the scene and the medical examiner's office is working to determine the cause of death, police added.

Drugs were found on the scene and taken for further testing, according to the NYPD.

The tech industry guru rose to prominence after founding the app Vine in 2012.

More recently, he was known for being the co-founder and an executive for the HQ Trivia app, which he co-created in 2017.

Honoree Colin Kroll attends the Variety Breakthrough of the Year Awards during the 2014 International CES at The Las Vegas Hotel & Casino, Jan. 9, 2014, in Las Vegas.  (Bryan Steffy/Getty Images for Variety) Honoree Colin Kroll attends the Variety Breakthrough of the Year Awards during the 2014 International CES at The Las Vegas Hotel & Casino, Jan. 9, 2014, in Las Vegas.

ABC News' Brendan Rand contributed to this report.