A former Planned Parenthood employee has revealed the horrific 'acts of terrorism' and death threats she and her colleagues faced while working at one of the non-profit's Kansas clinics, in a series of tweets that have been shared thousands of times on social media.

Bryn Greenwood, a writer from Lawrence, Kansas, took to Twitter on Sunday to recall how people would ignite gasoline under the clinic's back door and leave cherry bombs on its doorstep when she worked at one of Planned Parenthood's clinics in Wichita from 1996 to 2000. The novelist explained that her tweets were a response to the shooting at a Colorado Springs Planned Parenthood, which left three people dead and nine injured.

'I was lying in bed and I saw a tweet in which someone was saying, "Well, these things sometimes happen, but this is a rarity," and I thought to myself, "Yes, a guy going in and shooting the place up and killing three people is a rarity, but the reality is that low grade harassment intended to frighten patients and employees at clinics goes on all the time,"' she told Buzzfeed News.

Fighting back: Bryn Greenwood, from Lawrence, Kansas, revealed the 'acts of terrorism' she faced when she worked at one of one of Planned Parenthood's clinic in Wichita from 1996 to 2000 in a series of tweets

Everyday occurrence: Bryn said her tweets were a reaction to the shooting at a Colorado Springs Planned Parenthood, which left three people dead and nine injured

Violent attack: Bryn said that people would ignite gasoline at the back door of the clinic - even when patients were inside

The tragedy reminded Bryn of the harassment she had faced and inspired her to reveal the terrorism she and her co-workers were subjected to, noting that the clinic she worked at didn't even perform abortions.

'Gasoline was poured under our back door & ignited 4 times. Twice while the clinic was occupied, causing patients to be evacuated [sic],' she tweeted.

Bryn continued: 'Butyric acid (used as a stink bomb) was poured under our doors & into ventilation system so many times I lost count. Clinic evacuated.

'2 cherry bombs were left on our doorstep after hours, causing damage & clinic closure. Imagine what it's like going to work after that. [sic].'

Never-ending: The writer noted that butyric acid was used on the clinic so many times that she can't keep count

Standing up for her beliefs: Bryn said people need to realize that this type of extremism is terrorism

Spreading the word: Bryn's tweets about the horrors she endured have been shared thousands of times on Twitter

The writer went on to say that she and her colleagues received hundreds of phone calls from people who threatened to 'torch' the clinic and 'kill the "murdering whores" who worked there'.

And the three times that someone drove by and shot out the windows of the building, she recalled how picketers would stand on the sidewalk and harass employees who were sweeping up the glass.

'Our clinic didn't perform abortions. We did well woman exams, pregnancy tests, dispensed birth control, & treated STIs,' Bryn explained. 'Our clinic offered free & low cost services in a low income neighborhood, but every day the "pro-life" movement tried to frighten us. [sic].

'The goal was to make us afraid to come to work, to make us quit, to make us close the clinic. That's terrorism. That's how terrorism works,' she added.

Hard to face: The writer said that she and her colleagues received hundreds of phone calls from people who threatened to 'torch' the clinic and 'kill the "murdering whores" who worked there'

No compassion: She recalled how protesters would harass employees who were outside cleaning up glass when the clinic's windows were shot at

Unbelievable: Bryn revealed that the clinic she worked at didn't even perform abortions

Bryn also revealed that she volunteered at the clinic throughout the 90s and at one time worked with Dr. George Tiller, who served as the medical director of Women's Health Care Services.

Because Women's Health Care services was one of the only three clinics to provide late-term abortions at the time, he was the often the target of anti-abortion violence.

His clinic was firebombed in 1986 and seven years later he was shot five times. Bryn tweeted that he wouldn't let the threats stop him.

'Dr. Tiller kept coming to work after he was shot, because he was a caring man who knew how important his work was,' she wrote.

Won't back down: Bryn said anti-abortion extremists would target the facility - even though it was only providing health services to women living in a low income neighborhood

Personal experience: The former Planned Parenthood employee explained that because the extremist's violence as intended to scare them into closing the clinic, it is terrorism

End the violence: Bryn urged others to stop supporting the harassment of Planned Parenthood clinic

In 2009, he was shot in the head and killed by anti-abortion extremist Scott Roeder in his own church.

'Abortions are still provided in Dr. Tiller's old clinic, because that's how you respond to terrorism. We can't let them win,' Bryn wrote.

According to the National Abortion Federation, eight abortion providers or clinic employees have been murdered between 1977 and 2014, while 17 others have been the victims of attempted murder. In the past 37 years, there have also been 42 bombings and 182 reported instances of arson.

Bryn told Buzzfeed News that she and her colleagues tried to ignore the threats of violence, which left them angry and resolute to stay open.