Kasarani OCPD Muthuri Mwongera confirmed the incident saying the said husband only identified as Jimmy had been working as a casual labourer.
Jimmy and are reported to have separated over a marital dispute his wife earlier in the year but they made up and began living together again.
He reportedly moved in with his wife but had allegedly threatened to move out again over the weekend after another dispute erupted.
According to neighbors, the couple was constantly fighting especially on the days they consumed alcohol.
Reports say Jimmy died as his neighbors rushed him to hospital.
Police officers did not immediately find a murder weapon but said neighbors found the woman screaming with her husband lying on the floor.
The suspect told police officers that her husband fell on a sharp object that tore through his collar bone.
Investigations into the matter are ongoing.
The suspect is being held at the Kasarani Police Station pending her arraignment in court.
The latest comes in the backdrop of reports that incidences of domestic violence had increased between March and July, occasioned by the harsh times of the pandemic.
On July 6, President Uhuru ordered investigations into the rising reports of violence against women and girls – including rape, domestic violence, female genital mutilation (FGM) and child marriage – as a result of coronavirus restrictions.
Uhuru Kenyatta said he was concerned by “increasing tensions” within the home, noting that gender-based violence had increased, mental health issues had worsened, and instances of teenage pregnancy had escalated.