LOS ANGELES , California ( CNN ) -- Actress Demi Moore 's frequent postings on Twitter put her in the middle of a life-and-death drama Friday when a woman sent her an online message threatening suicide . Ashton Kutcher and Demi Moore are both active members of the Twitter social-networking site . Moore , who was in southern France where her husband , actor Ashton Kutcher , is filming a movie , quickly replied to the threat saying , `` Hope you are joking . '' Twitter followers who saw the message tracked it to a San Jose , California , home , where police found a 48-year-old woman . The police took her into custody for a psychological evaluation , according to a police spokesman . About two hours after the initial exchange , Moore posted this message -- known as a `` tweet '' -- on Twitter : `` Thanks everyone for reaching out to the San Jose PD i am told they are aware and no need to call anymore . I do not know this woman . '' A San Jose police spokesman said a `` concerned citizen '' -- not Moore or Kutcher -- called his department at 4:37 a.m. to report seeing the threat on Twitter . Police went to the residence that the caller provided and found the woman unharmed but in need of help , Sgt . Ronnie Lopez said . `` We determined she did meet the criteria for a 72-hour psychological evaluation , and she was taken to a hospital for that treatment , '' Lopez said . Both Moore and Kutcher post tweets from their cell phones several times a day . Kutcher has 675,000 subscribers following his Twitter postings , while 380,000 have signed up to follow Moore . Twitter attracts many readers who enjoy seeing the behind-the-scenes writing , photos and video from celebrities who have embraced the social-network technology . This unusual access also allows subscribers to send messages to celebrities , who sometimes reply . The original tweet to Moore on Friday , which was still online several hours later , read : `` getting a knife , a big one that is sharp . Going to cut my arm down the whole arm so it does n't waste time . '' Moore , who apparently knew others were trying to locate the person who wrote it , tweeted that she `` was very torn about responding or retweeting that woman 's post but felt uncomfortable just letting it go . '' She assured readers that `` the twitterverse is on the case . '' Two hours after the first message , Moore wrote : `` And if it is a joke it is not funny and nor is this an appropriate outlet for such a serious matter Time for us to move on . '' Her husband , who is known as a constant tweeter , posted his own praise of Moore : `` Wifey is pretty amazing , huh ? '' `` Lot of pain in the world ... Reach out to someone you do n't usually reach out to just to say hi . They might be lonely , '' Kutcher tweeted .
Demi Moore was recipient of suicide threat on Twitter . Moore helped put word out ; police later took troubled texter into custody . Comment: