Skip to main content
CrashStats

Serious M4 crash in Swansea on 15 December 2025 at 16:37 involving a Toyota Prius taxi

A van and a Toyota Prius taxi were involved in a crash on the M4 in Swansea at 16:37 on Monday 15 December 2025. A 36-year-old female passenger in the van was seriously injured and a 23-year-old female passenger in the van was slightly injured.

It happened after dark with no street lighting in fine weather on a wet slip road with a 30 mph limit.

Severity
Serious
Date
15 Dec 2025
Monday, 16:37
Vehicles
2
Van and Toyota Prius
Casualties
2
1 seriously injured, 1 slightly injured

Location of the crash

Police recorded the crash at latitude 51.67878, longitude -3.91296, in the SA6 postcode district and within the built-up area of Swansea. It is one of the crashes that make up the Morriston, Swansea, SA6 6RX area accident hotspot.

Map of where the crash happened in Swansea

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 1 crash
  • Serious

Collision details

Basic information

Reference
2025622600274
Council area
Swansea
Police force
South Wales
Police attended the scene
Yes

Road and location details

First road class
Motorway
First road number
4
Road type
Slip road
Speed limit
30 mph
Urban or rural
Urban

Junction information

Junction control
Auto traffic signal
Second road class
A
Second road number
4067

Pedestrian crossing information

Crossing facilities
No physical crossing facility within 50 m

Environmental conditions

Light conditions
Dark, no street lighting
Weather
Fine, no high winds
Road surface
Wet or damp

Enhanced collision data

Serious injury band
Moderately serious
How severity was recorded
From injuries recorded by police (CRASH system)
Estimated chance it was serious
100%
Estimated chance it was slight
0%

The 6 nearest recorded crashes

The nearest, 5 metres away, was a slight injury crash on 20 December 1988.

Vehicles involved (2)

  • Vehicle 1: Van

    Van or goods vehicle up to 3.5 tonnes

    Manoeuvre
    Turning right
    Travelling from
    South
    Travelling to
    East
    Position at junction
    Mid-junction, on roundabout or on main road
    First point of impact
    Front

  • Vehicle 2: Toyota Prius

    Taxi or private hire car

    Manoeuvre
    Moving off
    Travelling from
    South
    Travelling to
    North
    Position at junction
    Mid-junction, on roundabout or on main road
    First point of impact
    Offside
    Left-hand drive
    No
    Journey purpose
    Personal business or leisure
    Engine capacity
    1,797 cc
    Fuel or propulsion
    Hybrid electric

Casualties (2)

  • Casualty 1: Passenger

    Slight

    Female, aged 23, van occupant, in vehicle 1 (Van)

    Car passenger
    Rear seat passenger
    Home area deprivation
    10% most deprived
    Distance from home
    5 to 10 km

  • Casualty 2: Passenger

    Serious

    Female, aged 36, van occupant, in vehicle 1 (Van)

    Car passenger
    Front seat passenger
    Serious injury band
    Moderately serious
    Home area deprivation
    10% most deprived
    Distance from home
    5 to 10 km

Data source

This record comes from the Department for Transport’s road safety data (STATS19), in which police forces in Great Britain record every road crash reported to them where someone was injured. It is reference 2025622600274 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Swansea road accident statistics for 2025.