London (CNN) A Syrian refugee who escaped civil war for a better life in the UK has been named one of the victims of the Grenfell Tower fire in west London, the UK-based Syria Solidarity Campaign said Thursday.

An outpouring of heart-wrenching messages from London's Syrian community mourned the death of Mohammad Al-Hajali, 23, a civil engineering student at the University of West London.

Al-Hajali arrived in the UK in 2014 after fleeing his home in Daraa, Syria, and crossing the Mediterranean Sea from Turkey.

Mohammad and his brother Omar, 25, a student at Westminster Business School, lived together in a 14th-floor apartment in Grenfell Tower. The brothers were separated as firemen tried to rescue them from burning building early Wednesday.

"[When the firemen] opened the door, the smoke came inside, I saw the fire around me. And they were pushing us, pushing all of us," a devastated Omar told BBC News on Thursday. "I couldn't talk, I couldn't look around, I didn't even see anything, even my fingers, nothing."

After being overwhelmed by smoke, Mohammad was forced to return to the apartment, where he called family and friends to say goodbye.

"I went outside, I called him and said 'Where are you?'" Omar told the BBC. "He said, 'I'm in the flat.'"

"I said, 'Why didn't you come? They brought us outside, I thought you were with us.' He said, 'no one brought me outside.'"

"He said, 'why you left me?'"

Campaign: UK failed to protect Mohammed

On Thursday the Syria Solidarity Campaign said in a statement: "A Syrian refugee in the UK, Mohammed passed away in the Grenfell Tower fire yesterday."

"Mohammed undertook a dangerous journey to flee war and death in Syria, only to meet it here in the UK, in his own home. Mohammed came to this country for safety and the UK failed to protect him."

Abdullah Hourani, co-founder of the Syria Solidarity Campaign and a friend of Al-Hajali's, told CNN that the young man's death sent shockwaves through the community.

"He left Syria to have a nice life, a new life in the UK. He was hoping to be safe here, but he wasn't. It's horrible," Hourani said.

"He was on the phone with his brother, who survived, until 5 a.m. ... the last thing he said was that 'the fire is coming inside, I will die,'" Hourani said, choking up. "And he called one of his friends to pass the news to his family in Syria, to tell them he loved them. He tried calling but couldn't reach them."

Hourani said Omar was physically fine but emotionally devastated at the loss of his brother.

The brothers were active members of the Syrian diaspora in London, frequently participating in fund-raising and charity work to help fellow refugees.

"Mohammad was always one of the first to offer his help," Hourani recalled.

Mirna Suleiman left a message for her friend on a community wall outside Grenfell Tower: "You are in our hearts Mohammad Alhajali, wherever you may be."

Suleiman told CNN she wrote the message Wednesday night when she still had hope he would be found alive.

She searched frantically for information about his whereabouts Wednesday, calling all the local hospitals and rescue centers.