Dylan Groenewegen has expressed his dismay after the horrific Tour of Poland crash that left Fabio Jakobsen in an induced coma.

Deceuninck-QuickStep rider Jakobsen was in a serious but stable condition in a Katowice hospital after undergoing facial surgery, with doctors intending to wake the 23-year-old on Thursday.

Jakobsen was airlifted to hospital on Wednesday after fellow Dutchman Groenewegen appeared to nudge him into the barriers in a high-speed sprint finish on the opening stage of the race.

Jumbo-Wisma rider Groenewegen was disqualified and strongly condemned by governing body the Union Cycliste Internationale (UCI) for his "dangerous behaviour".

Groenewegen made a first public statement on Thursday, saying he felt for Jakobsen.

He posted on Twitter: "I hate what happened yesterday. I can't find the words to describe how sorry I am for Fabio and others who have fallen or been hit.

"At the moment, the health of Fabio is the most important thing. I think about him constantly."

Jumbo-Wisma issued an apology on Wednesday and said an internal review would take place.

"Our thoughts go out to Fabio Jakobsen and other people involved in today's terrible crash in the Tour of Poland. Crashes like these should not happen," the team tweeted.

"We offer our sincere apologies and we will discuss internally what has happened before we may make any further statement."