Married At First Sight star Jessica Castro appears to have filed a restraining order against her husband Ryan De Nino.

Just days after fan sites speculated about De Nino being a drug user, following news that the two had split, the short-lived groom posted pictures on Instagram indicating that his wife had filed injunctions in court.

The photos he posted at the weekend show notices from the court of New York with a plea for an injunction against Ryan De Nino filed by Jessica Castro.

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Abrupt end: Marriage At First Sight star Jessica Castro appears to have filed a restraining order against her husband Ryan De Nino

TMZ claims Castro made the filing after her husband allegedly threatened: 'I plan on killing you and your family.'

De Nino wrote an explanatory note to accompany the photos, where he revealed his wife had filed for an order of protection.

'Unfortunately this isn't something I'd wish on anyone,' he began before referencing the fan sites speculated about his character. 'To hear and read about the forum on Thursday to come home and find this on Friday. To see the IG on Sat and see the location was enough.

Legal action: Just days after fan sites speculated about De Nino being a drug user, the short-lived groom posted pictures on Instagram indicating that his wife had filed injunctions in court

Mapping: Ryan posted a chilling snap over the weekend as he appeared to track Jessica

'They say first 48 for a reason. This is another fact here's the order of protection- which had me in awe and when I read it was disgusted. Bash me all you want, say whatever it is about me just remember this board don't break for nada.'

He then added: 'Why I posted this will be thoroughly explained when the times right. #CheckMate'.

Ryan and Jessica married in December, after meeting that same day.

Day one: The two tied the knot the first day they met

The A&E show paired the two after matching them according to a psychological compatibility test.

Ryan and Jessica's journey as a new couple was chronicled for six weeks during shooting for the series.