Kat Moon will furiously lash out at Sonia Fowler on EastEnders later this month, as her personal problems escalate.

Sonia (Natalie Cassidy) will bear the brunt of Kat's drunken behaviour at Ian and Jane Beale's wedding, resulting in a dramatic showdown between the pair.

Although Kat (Jessie Wallace) agrees to attend the wedding with her estranged husband Alfie, any hopes for a reconciliation are crushed as she starts knocking back drinks. This causes Alfie to become increasingly fed up with her out-of-control behaviour.

The day then goes from bad to worse as Kat grows jealous of Alfie (Shane Richie) and soon spots Sonia staring at her. When Sonia confronts a drunken Kat about her frosty behaviour, Kat takes things too far and pushes Sonia's face into the wedding cake.

With everyone shocked by the commotion, Alfie intervenes and desperately tries to get through to Kat, but has she gone too far this time?

Kat lashes out at Sonia.
© BBC
Kat lashes out at Sonia.

Kat pushes Sonia's face into the wedding cake.
© BBC
Kat pushes Sonia's face into the wedding cake.

Alfie attempts to intervene.
© BBC
Alfie attempts to intervene.

Kat takes things too far.
© BBC
Kat takes things too far.

Sonia bears the brunt of Kat's anger.
© BBC
Sonia bears the brunt of Kat's anger.

EastEnders airs these scenes on Thursday, February 19 at 7.30pm during an hour-long special to celebrate the show's anniversary. This episode will feature live elements.