Iceland

Belly landed for unknown reason 27 km from Akureyri. No casualties.
Source & photo:
http://aviation-safety.net/database/record.php?id=19440807-2

During the take off run, the aircraft swung, veered off runway and collided with a truck. No casualties.

While on a survey flight off the north coast of Iceland, the four-engine aircraft was shot down by two USAAF P.38 Lightning and crashed into the Greenland Sea off the Grimsey Island. All seven crew members took refuge in a dinghy and were later rescued while the aircraft sank and was lost.
Crew (I/KG40):
Karl Holtrup,
Günter Karte,
Josef Teufel,
Herbert Richter,
Emil Brandt,
Wilhelm Lehn,
Siegfried Klinkmann.
Source: http://aviation-safety.net/wikibase/wiki.php?id=78787

An undercarriage collapsed on landing at Reykjavik Airport. The aircraft slid on runway for several yards before coming to rest. While all occupants were unhurt, the aircraft was considered as damaged beyond repair.

The crew was returning to base in Reykjavik following a maritime patrol flight. In poor weather conditions, the twin engine airplane impacted a hillside located near Hraunsel, 10 km northeast of Stadur Light House. All five crew members were killed.
Crew:
F/O J. Coles, pilot,
F/Sgt F. G. Crofts, navigator,
Sgt J. E. Robbins, wireless operator and air gunner,
F/Sgt John James Hill, wireless operator and air gunner,
F/Sgt L. Franklin, wireless operator and air gunner.

Suffered an engine failure and crashed on approach to Patterson Field. There were no fatalities.

The airplane departed RAF Bovingdon on a transatlantic flight to the US with an intermediate stop at RAF Kaldaðarnes, Iceland. While descending to the airbase, the crew encountered poor weather conditions with rain falls, low ceiling and a near zero visibility. At an altitude of 1,100 feet and a speed of 139 knots, the airplane hit a rocky peak with its right wing and later crashed on the slope of Mt Fagradalsfjall located southeast of Keflavik. The airplane disintegrated on impact and among the 15 occupants, only the tail gunner survived with minor injuries. At the time of the accident, the pilot was trying to establish a visual contact with the ground. General Andrews was the highest-ranking Allied officer to die in the line of duty to that time in the war. At the time of his death, he was Commanding General, United States Forces, European Theater of Operations. Camp Springs Army Air Field, Maryland, was renamed Andrews Field (later Joint Base Andrews), for him on 7 February 1945.
Crew (93rd Squadron):
Cpt Robert H. Shannon, pilot, †
Lt Gen Frank Maxwell Andrews, copilot, †
Cpt James E. Gott, navigator, †
T/Sgt Kenneth A. Jeffers, radio operator, †
S/Sgt Lloyd C. Weir, crew chief, †
S/Sgt George A. Eisel, tail gunner,
S/Sgt Paul H. McQueen, air gunner. †
Passengers:
Adna Wright Leonard, Methodist bishop, †
Br Gen Charles H. Barth Jr., Andrews' Chief of Staff, †
Col Marlow Krum, press officer for the ETO, †
Col Frank L. Miller, chaplain, †
Lt Col Fred A. Chapman, senior aid to Gen Andrews, †
Maj Theodore C. Totman, senior aid to Gen Andrews, †
Maj Robert H. Humphrey, chaplain, †
Cpt Joseph T. Johnson. †

While on a reconnaissance mission out from Trondheim, the airplane crashed in unknown circumstances in Reykjavik and was destroyed. Three crew members were killed and one parachuted to safety and became PoW.
Crew:
Lt Karl-Martin Bröck, pilot, †
Fw Werner V .G. Bullerjahn, †
Fw Theodor Scholtysek, †
Uffz Anton Mynarek.

The airplane departed Bangor, ME, on a flight to England with an intermediate stop at Patterson Field (Meeks Field) near Keflavik. En route, the crew encountered poor weather conditions with limited visibility due to heavy snow falls. In darkness, the crew got lost and after a flight of 14 hours, the airplane ran out of fuel, forcing the crew to attempt an emergency landing. The airplane crash landed in a field located north of Grindavik and was damaged beyond repair. All crew members were rescued.

After touchdown at Reykjavik Airport, the four engine airplane was unable to stop within the remaining distance. It overran and came to rest. There were no fatalities.