'True Blood' star Mariana Klaveno has got engaged.

The actress - who plays Lorena Ball in the HBO series - revealed she and her boyfriend of three years, producer Luis Patino, have decided to take the next step in their relationship.

Writing on her twitter page, she said: "Sorry I've been out of touch for a few days -- been busy getting engaged! (sic)"

Mariana - whose evil character was killed off in the last series of the show - also confirmed the news on her page on social networking site Facebook.

The brunette beauty's former co-stars Anna Paquin and Stephen Moyer - who play waitress Sookie Stackhouse and vampire Bill Compton in the vampire drama - tied the knot in August at a private Beach House in California, and according to friends of the couple, they have "never been happier".

'True Blood' actress Carrie Preston recently explained: "They're really sweet with each other. They just really get each other. Anna will say she's never been happier. It was so beautiful."