A woman in the US has been charged with murder after allegedly poisoning her husband by putting eyedrops into his water for several days.

52-year-old Lana Clayton was arrested weeks after her 64-year-old husband was found dead at home.

She was detained when a toxicology test discovered a chemical called tetrahy-drozoline in his body.

The substance is found in over‑the‑counter eyedrops and can cause seizures, stop breathing and induce comas.

In a statement, police say she admitted to poisoning her husband "without his knowledge".

Police have not announced any potential motive.

Prosecutors say they are also reviewing a 2016 incident, in which she shot her husband in the head with a crossbow as he slept.

[Source: BBC]