At least three of the 39 people found dead in a lorry trailer in Essex may have been from Vietnam.
The BBC knows of three Vietnamese people whose relatives are worried they may have been in the trailer.
Pham Thi Tra My has not been heard from since she sent urgent messages on Tuesday saying she could not breathe.
Pham Tri Tra My's brother said £30,000 had been paid to people smugglers (Copyright Family of Pham Tri Tra My)
France advanced to the World Cup final for the first time since 2006 with a 1-0 win over Belgium on Tuesday.
Samuel Umtiti scored the only goal with a header in the 51st minute.
France, the 1998 champion and 2006 runner-up, will play either Croatia or England in Sunday's final in Moscow.
There was less at stake the last time the teams last went head-to-head at the World Cup, a 4-2 victory for France in the third-place match in 1986.
Belgium ended Brazil's dream of a sixth World Cup title when they beat the South Americans 2-1 in a dramatic, enthralling end-to-end quarter-final to earn a semi-final tie against France.
Brazil dominated the opening stages, with Thiago Silva hitting the post, but went behind when midfielder Fernandinho put the ball into his own net from a corner in the 13th minute.
Belgium took advantage of some wide open spaces in the Brazil defence when Romelu Lukaku found an unmarked Kevin de Bruyne who fired home their second goal in the 31st.
Belgium scored in the closing seconds of stoppage time to rally and stun an upset-minded Japan 3-2 in the World Cup round of 16 on Monday.
After a scoreless first half in Rostov-on-Don, Russia, Japan took over for much of the second half, scoring the first two goals of the match to take a 2-0 lead.
Genki Haraguchi opened up scoring in the 48th minute for Japan, followed by a goal four minutes later by teammate Takashi Inui.
A double by Manchester United's Romelu Lukaku helped Belgium to a 3-0 win over Concacaf World Cup debutants, Panama in the FIFA World Cup today.
Belgium and Panama clashed in Group G on Monday in Sochi, with Lukaku proving too much for Panama.
All goals came in the second-half as Dries Mertens also netted with a beauty of a volley.
Great work from Kevin De Bruyne set up Lukaku to head in his first before he dinked in a second after a counter-attack.
Belgium were without defensive lynchpin Vincent Kompany but his replacement, Dedryck Boyata, was rarely tested.
Nationals of Trinidad and Tobago in Belgium are all said to be safe following today's terrorist attacks in Brussels.
The Ministry of Foreign Affairs has issued this statement in the issue.