By Hank Tester

MIAMI (CBSMiami) – Westminster Christian School announced Monday that one of their students had died in a boat crash near the Florida Keys over the weekend.

Authorities said Lucas Alvarez, 18, died when the boat he was in hit a marker Sunday.

It happened after 3:45 p.m., according to the investigating agency, the Florida Fish and Wildlife Conservation Commission.

Here is what the FWC said happened:

“The vessel was cruising on the bayside of Islamorada, heading south in Bowlegs Cut and struck a channel marker. Three occupants were ejected. Occupant Alvarez was found in the water with trauma to his lower torso and was recovered from the water. He was given CPR and applied pressure to his injuries. He was transported to EMS on shore. EMS transported Mr. Alvarez to Mariners Hospital where he was pronounced deceased.”

Authorities said the other teens were uninjured.

Here is what the school had to say in a statement:

“It is with a heavy heart that we inform you of the passing of senior Lucas Alvarez on Sunday due to a boating accident in the Keys.

A Westminster student since middle school, Lucas was loved by many and was known for being kind to everyone. He was a captain of the lacrosse team and had planned on attending Universal Technical Institute in Orlando after graduation.”

In honor of his passing, all lacrosse games scheduled for this week have been postponed.

“I know the senior class is feeling it. Wishing them nothing but prayers, especially out to his family,” said Westminster basketball coach DeAndre Murphy.

Alvarez’s girlfriend, Marla Fay, took to Instagram to share her love for him.

View this post on Instagram

yesterday was the hardest day of my life, yesterday we lost the most amazing young man, the most amazing son, brother, nephew, best friend, student, piano prodigy, and the love of my life and truly my best friend. i can’t disguise my heartbreak for lucas’s family and friends, he was loved my anyone who knew him. lucas was the most selfless person i knew, and for those who were lucky enough to know him, we all know the laughter and joy he brought into our lives every day. it still doesn’t seem real, as if tomorrow i’m going to get to see him, hug him, hear his voice, and tell him i love him. i’m asking you to pray very hard for the alvarez family, his brother lance, and all of lucas’s friends. i need to take a break from social media, i love you all but i just need to find my head. in closing. im asking you all to please always tell your family and friends how much you love them and always cherish the moments of your life. lucas alvarez, i love you endlessly, thank you for always bringing a smile to my face and dealing with the fact that i’d force you to give me piggy back rides. i’ll never forget your touch, the way we’d look into each others eyes. i’ll never forget how much we laughed and loved. i love you forever & ever, amen. ❤️🙏🏼🕊 fly high and always watch over us.

A post shared by T H Ξ M Λ R L Λ F Λ Y (@marlafay) on

Monday night, cars parked near his home as family and friends mourned together.

When Westminster reopens from winter break on Wednesday, it will hold a special assembly for high school students and faculty.

The school will make therapists available throughout the day for counseling sessions.